From 072157e2ba87f3303958e48815fa2548009d3410 Mon Sep 17 00:00:00 2001 From: marha Date: Mon, 30 May 2011 22:21:12 +0200 Subject: mesa git update 30 May 2011 --- mesalib/src/mesa/main/shaderapi.c | 2 + mesalib/src/mesa/state_tracker/st_cb_blit.c | 14 +- mesalib/src/mesa/state_tracker/st_cb_condrender.c | 199 +-- mesalib/src/mesa/state_tracker/st_cb_drawpixels.c | 3 +- mesalib/src/mesa/state_tracker/st_cb_fbo.c | 1327 ++++++++++----------- mesalib/src/mesa/state_tracker/st_cb_texture.c | 23 + mesalib/src/mesa/state_tracker/st_context.h | 4 + mesalib/src/mesa/state_tracker/st_format.c | 42 +- mesalib/src/mesa/state_tracker/st_gen_mipmap.c | 9 + mesalib/src/mesa/swrast/s_blit.c | 1235 ++++++++++--------- 10 files changed, 1457 insertions(+), 1401 deletions(-) (limited to 'mesalib/src') diff --git a/mesalib/src/mesa/main/shaderapi.c b/mesalib/src/mesa/main/shaderapi.c index 03155b7ac..1e237a95d 100644 --- a/mesalib/src/mesa/main/shaderapi.c +++ b/mesalib/src/mesa/main/shaderapi.c @@ -1593,6 +1593,8 @@ _mesa_UseProgramObjectARB(GLhandleARB program) struct gl_transform_feedback_object *obj = ctx->TransformFeedback.CurrentObject; + ASSERT_OUTSIDE_BEGIN_END(ctx); + if (obj->Active) { _mesa_error(ctx, GL_INVALID_OPERATION, "glUseProgram(transform feedback active)"); diff --git a/mesalib/src/mesa/state_tracker/st_cb_blit.c b/mesalib/src/mesa/state_tracker/st_cb_blit.c index 25c95c7b9..416be194d 100644 --- a/mesalib/src/mesa/state_tracker/st_cb_blit.c +++ b/mesalib/src/mesa/state_tracker/st_cb_blit.c @@ -109,6 +109,11 @@ st_BlitFramebuffer(struct gl_context *ctx, dstY1 = tmp; } + /* Disable conditional rendering. */ + if (st->render_condition) { + st->pipe->render_condition(st->pipe, NULL, 0); + } + if (mask & GL_COLOR_BUFFER_BIT) { struct gl_renderbuffer_attachment *srcAtt = &readFB->Attachment[readFB->_ColorReadBufferIndex]; @@ -121,7 +126,7 @@ st_BlitFramebuffer(struct gl_context *ctx, struct pipe_surface *dstSurf = dstRb->surface; if (!srcObj->pt) - return; + goto done; util_blit_pixels(st->blit, srcObj->pt, srcAtt->TextureLevel, srcX0, srcY0, srcX1, srcY1, @@ -199,6 +204,13 @@ st_BlitFramebuffer(struct gl_context *ctx, } } } + +done: + /* Restore conditional rendering state. */ + if (st->render_condition) { + st->pipe->render_condition(st->pipe, st->render_condition, + st->condition_mode); + } } diff --git a/mesalib/src/mesa/state_tracker/st_cb_condrender.c b/mesalib/src/mesa/state_tracker/st_cb_condrender.c index 679527569..64c6c117f 100644 --- a/mesalib/src/mesa/state_tracker/st_cb_condrender.c +++ b/mesalib/src/mesa/state_tracker/st_cb_condrender.c @@ -1,96 +1,103 @@ -/************************************************************************** - * - * Copyright 2009 VMware, Inc. - * All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the - * "Software"), to deal in the Software without restriction, including - * without limitation the rights to use, copy, modify, merge, publish, - * distribute, sub license, and/or sell copies of the Software, and to - * permit persons to whom the Software is furnished to do so, subject to - * the following conditions: - * - * The above copyright notice and this permission notice (including the - * next paragraph) shall be included in all copies or substantial portions - * of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF - * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. - * IN NO EVENT SHALL THE AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR - * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, - * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE - * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - * - **************************************************************************/ - - -/** - * glBegin/EndCondtionalRender functions - * - * \author Brian Paul - */ - - -#include "main/imports.h" -#include "main/context.h" - -#include "pipe/p_context.h" -#include "pipe/p_defines.h" -#include "st_context.h" -#include "st_cb_queryobj.h" -#include "st_cb_condrender.h" - - -/** - * Called via ctx->Driver.BeginConditionalRender() - */ -static void -st_BeginConditionalRender(struct gl_context *ctx, struct gl_query_object *q, - GLenum mode) -{ - struct st_query_object *stq = st_query_object(q); - struct pipe_context *pipe = st_context(ctx)->pipe; - uint m; - - switch (mode) { - case GL_QUERY_WAIT: - m = PIPE_RENDER_COND_WAIT; - break; - case GL_QUERY_NO_WAIT: - m = PIPE_RENDER_COND_NO_WAIT; - break; - case GL_QUERY_BY_REGION_WAIT: - m = PIPE_RENDER_COND_BY_REGION_WAIT; - break; - case GL_QUERY_BY_REGION_NO_WAIT: - m = PIPE_RENDER_COND_BY_REGION_NO_WAIT; - break; - default: - assert(0 && "bad mode in st_BeginConditionalRender"); - m = PIPE_RENDER_COND_WAIT; - } - - pipe->render_condition(pipe, stq->pq, m); -} - - -/** - * Called via ctx->Driver.BeginConditionalRender() - */ -static void -st_EndConditionalRender(struct gl_context *ctx, struct gl_query_object *q) -{ - struct pipe_context *pipe = st_context(ctx)->pipe; - (void) q; - pipe->render_condition(pipe, NULL, 0); -} - - - -void st_init_cond_render_functions(struct dd_function_table *functions) -{ - functions->BeginConditionalRender = st_BeginConditionalRender; - functions->EndConditionalRender = st_EndConditionalRender; -} +/************************************************************************** + * + * Copyright 2009 VMware, Inc. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL THE AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + + +/** + * glBegin/EndCondtionalRender functions + * + * \author Brian Paul + */ + + +#include "main/imports.h" +#include "main/context.h" + +#include "pipe/p_context.h" +#include "pipe/p_defines.h" +#include "st_context.h" +#include "st_cb_queryobj.h" +#include "st_cb_condrender.h" + + +/** + * Called via ctx->Driver.BeginConditionalRender() + */ +static void +st_BeginConditionalRender(struct gl_context *ctx, struct gl_query_object *q, + GLenum mode) +{ + struct st_query_object *stq = st_query_object(q); + struct st_context *st = st_context(ctx); + struct pipe_context *pipe = st->pipe; + uint m; + + switch (mode) { + case GL_QUERY_WAIT: + m = PIPE_RENDER_COND_WAIT; + break; + case GL_QUERY_NO_WAIT: + m = PIPE_RENDER_COND_NO_WAIT; + break; + case GL_QUERY_BY_REGION_WAIT: + m = PIPE_RENDER_COND_BY_REGION_WAIT; + break; + case GL_QUERY_BY_REGION_NO_WAIT: + m = PIPE_RENDER_COND_BY_REGION_NO_WAIT; + break; + default: + assert(0 && "bad mode in st_BeginConditionalRender"); + m = PIPE_RENDER_COND_WAIT; + } + + st->render_condition = stq->pq; + st->condition_mode = m; + + pipe->render_condition(pipe, stq->pq, m); +} + + +/** + * Called via ctx->Driver.BeginConditionalRender() + */ +static void +st_EndConditionalRender(struct gl_context *ctx, struct gl_query_object *q) +{ + struct st_context *st = st_context(ctx); + struct pipe_context *pipe = st->pipe; + (void) q; + + pipe->render_condition(pipe, NULL, 0); + st->render_condition = NULL; +} + + + +void st_init_cond_render_functions(struct dd_function_table *functions) +{ + functions->BeginConditionalRender = st_BeginConditionalRender; + functions->EndConditionalRender = st_EndConditionalRender; +} diff --git a/mesalib/src/mesa/state_tracker/st_cb_drawpixels.c b/mesalib/src/mesa/state_tracker/st_cb_drawpixels.c index 29c1df4ae..965fbcd1d 100644 --- a/mesalib/src/mesa/state_tracker/st_cb_drawpixels.c +++ b/mesalib/src/mesa/state_tracker/st_cb_drawpixels.c @@ -1247,7 +1247,8 @@ blit_copy_pixels(struct gl_context *ctx, GLint srcx, GLint srcy, !ctx->VertexProgram.Enabled && !ctx->Shader.CurrentFragmentProgram && st_fb_orientation(ctx->ReadBuffer) == st_fb_orientation(ctx->DrawBuffer) && - ctx->DrawBuffer->_NumColorDrawBuffers == 1) { + ctx->DrawBuffer->_NumColorDrawBuffers == 1 && + !ctx->Query.CondRenderQuery) { struct st_renderbuffer *rbRead, *rbDraw; GLint drawX, drawY; diff --git a/mesalib/src/mesa/state_tracker/st_cb_fbo.c b/mesalib/src/mesa/state_tracker/st_cb_fbo.c index 2e87d202c..64424f776 100644 --- a/mesalib/src/mesa/state_tracker/st_cb_fbo.c +++ b/mesalib/src/mesa/state_tracker/st_cb_fbo.c @@ -1,665 +1,662 @@ -/************************************************************************** - * - * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. - * All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the - * "Software"), to deal in the Software without restriction, including - * without limitation the rights to use, copy, modify, merge, publish, - * distribute, sub license, and/or sell copies of the Software, and to - * permit persons to whom the Software is furnished to do so, subject to - * the following conditions: - * - * The above copyright notice and this permission notice (including the - * next paragraph) shall be included in all copies or substantial portions - * of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF - * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. - * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR - * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, - * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE - * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - * - **************************************************************************/ - - -/** - * Framebuffer/renderbuffer functions. - * - * \author Brian Paul - */ - - -#include "main/imports.h" -#include "main/context.h" -#include "main/fbobject.h" -#include "main/framebuffer.h" -#include "main/macros.h" -#include "main/mfeatures.h" -#include "main/renderbuffer.h" - -#include "pipe/p_context.h" -#include "pipe/p_defines.h" -#include "pipe/p_screen.h" -#include "st_context.h" -#include "st_cb_fbo.h" -#include "st_cb_flush.h" -#include "st_format.h" -#include "st_texture.h" -#include "st_manager.h" - -#include "util/u_format.h" -#include "util/u_inlines.h" -#include "util/u_surface.h" - - -/** - * gl_renderbuffer::AllocStorage() - * This is called to allocate the original drawing surface, and - * during window resize. - */ -static GLboolean -st_renderbuffer_alloc_storage(struct gl_context * ctx, - struct gl_renderbuffer *rb, - GLenum internalFormat, - GLuint width, GLuint height) -{ - struct st_context *st = st_context(ctx); - struct pipe_context *pipe = st->pipe; - struct pipe_screen *screen = st->pipe->screen; - struct st_renderbuffer *strb = st_renderbuffer(rb); - enum pipe_format format; - struct pipe_surface surf_tmpl; - - if (strb->format != PIPE_FORMAT_NONE) - format = strb->format; - else - format = st_choose_renderbuffer_format(screen, internalFormat, - rb->NumSamples); - - if (format == PIPE_FORMAT_NONE) { - return FALSE; - } - - /* init renderbuffer fields */ - strb->Base.Width = width; - strb->Base.Height = height; - strb->Base.Format = st_pipe_format_to_mesa_format(format); - strb->Base._BaseFormat = _mesa_base_fbo_format(ctx, internalFormat); - strb->Base.DataType = st_format_datatype(format); - strb->format = format; - - strb->defined = GL_FALSE; /* undefined contents now */ - - if (strb->software) { - size_t size; - - free(strb->data); - - assert(strb->format != PIPE_FORMAT_NONE); - - strb->stride = util_format_get_stride(strb->format, width); - size = util_format_get_2d_size(strb->format, strb->stride, height); - - strb->data = malloc(size); - - return strb->data != NULL; - } - else { - struct pipe_resource template; - - /* Free the old surface and texture - */ - pipe_surface_reference( &strb->surface, NULL ); - pipe_resource_reference( &strb->texture, NULL ); - pipe_sampler_view_reference(&strb->sampler_view, NULL); - - /* Setup new texture template. - */ - memset(&template, 0, sizeof(template)); - template.target = st->internal_target; - template.format = format; - template.width0 = width; - template.height0 = height; - template.depth0 = 1; - template.array_size = 1; - template.last_level = 0; - template.nr_samples = rb->NumSamples; - if (util_format_is_depth_or_stencil(format)) { - template.bind = PIPE_BIND_DEPTH_STENCIL; - } - else { - template.bind = (PIPE_BIND_DISPLAY_TARGET | - PIPE_BIND_RENDER_TARGET); - } - - strb->texture = screen->resource_create(screen, &template); - - if (!strb->texture) - return FALSE; - - memset(&surf_tmpl, 0, sizeof(surf_tmpl)); - u_surface_default_template(&surf_tmpl, strb->texture, template.bind); - strb->surface = pipe->create_surface(pipe, - strb->texture, - &surf_tmpl); - if (strb->surface) { - assert(strb->surface->texture); - assert(strb->surface->format); - assert(strb->surface->width == width); - assert(strb->surface->height == height); - } - - return strb->surface != NULL; - } -} - - -/** - * gl_renderbuffer::Delete() - */ -static void -st_renderbuffer_delete(struct gl_renderbuffer *rb) -{ - struct st_renderbuffer *strb = st_renderbuffer(rb); - ASSERT(strb); - pipe_surface_reference(&strb->surface, NULL); - pipe_resource_reference(&strb->texture, NULL); - pipe_sampler_view_reference(&strb->sampler_view, NULL); - free(strb->data); - free(strb); -} - - -/** - * gl_renderbuffer::GetPointer() - */ -static void * -null_get_pointer(struct gl_context * ctx, struct gl_renderbuffer *rb, - GLint x, GLint y) -{ - /* By returning NULL we force all software rendering to go through - * the span routines. - */ -#if 0 - assert(0); /* Should never get called with softpipe */ -#endif - return NULL; -} - - -/** - * Called via ctx->Driver.NewFramebuffer() - */ -static struct gl_framebuffer * -st_new_framebuffer(struct gl_context *ctx, GLuint name) -{ - /* XXX not sure we need to subclass gl_framebuffer for pipe */ - return _mesa_new_framebuffer(ctx, name); -} - - -/** - * Called via ctx->Driver.NewRenderbuffer() - */ -static struct gl_renderbuffer * -st_new_renderbuffer(struct gl_context *ctx, GLuint name) -{ - struct st_renderbuffer *strb = ST_CALLOC_STRUCT(st_renderbuffer); - if (strb) { - _mesa_init_renderbuffer(&strb->Base, name); - strb->Base.Delete = st_renderbuffer_delete; - strb->Base.AllocStorage = st_renderbuffer_alloc_storage; - strb->Base.GetPointer = null_get_pointer; - strb->format = PIPE_FORMAT_NONE; - return &strb->Base; - } - return NULL; -} - - -/** - * Allocate a renderbuffer for a an on-screen window (not a user-created - * renderbuffer). The window system code determines the format. - */ -struct gl_renderbuffer * -st_new_renderbuffer_fb(enum pipe_format format, int samples, boolean sw) -{ - struct st_renderbuffer *strb; - - strb = ST_CALLOC_STRUCT(st_renderbuffer); - if (!strb) { - _mesa_error(NULL, GL_OUT_OF_MEMORY, "creating renderbuffer"); - return NULL; - } - - _mesa_init_renderbuffer(&strb->Base, 0); - strb->Base.ClassID = 0x4242; /* just a unique value */ - strb->Base.NumSamples = samples; - strb->Base.Format = st_pipe_format_to_mesa_format(format); - strb->Base._BaseFormat = _mesa_get_format_base_format(strb->Base.Format); - strb->Base.DataType = st_format_datatype(format); - strb->format = format; - strb->software = sw; - - switch (format) { - case PIPE_FORMAT_R8G8B8A8_UNORM: - case PIPE_FORMAT_B8G8R8A8_UNORM: - case PIPE_FORMAT_A8R8G8B8_UNORM: - case PIPE_FORMAT_R8G8B8X8_UNORM: - case PIPE_FORMAT_B8G8R8X8_UNORM: - case PIPE_FORMAT_X8R8G8B8_UNORM: - case PIPE_FORMAT_B5G5R5A1_UNORM: - case PIPE_FORMAT_B4G4R4A4_UNORM: - case PIPE_FORMAT_B5G6R5_UNORM: - strb->Base.InternalFormat = GL_RGBA; - break; - case PIPE_FORMAT_Z16_UNORM: - strb->Base.InternalFormat = GL_DEPTH_COMPONENT16; - break; - case PIPE_FORMAT_Z32_UNORM: - strb->Base.InternalFormat = GL_DEPTH_COMPONENT32; - break; - case PIPE_FORMAT_Z24_UNORM_S8_USCALED: - case PIPE_FORMAT_S8_USCALED_Z24_UNORM: - case PIPE_FORMAT_Z24X8_UNORM: - case PIPE_FORMAT_X8Z24_UNORM: - strb->Base.InternalFormat = GL_DEPTH24_STENCIL8_EXT; - break; - case PIPE_FORMAT_S8_USCALED: - strb->Base.InternalFormat = GL_STENCIL_INDEX8_EXT; - break; - case PIPE_FORMAT_R16G16B16A16_SNORM: - strb->Base.InternalFormat = GL_RGBA16; - break; - case PIPE_FORMAT_R8_UNORM: - strb->Base.InternalFormat = GL_R8; - break; - case PIPE_FORMAT_R8G8_UNORM: - strb->Base.InternalFormat = GL_RG8; - break; - case PIPE_FORMAT_R16_UNORM: - strb->Base.InternalFormat = GL_R16; - break; - case PIPE_FORMAT_R16G16_UNORM: - strb->Base.InternalFormat = GL_RG16; - break; - default: - _mesa_problem(NULL, - "Unexpected format in st_new_renderbuffer_fb"); - free(strb); - return NULL; - } - - /* st-specific methods */ - strb->Base.Delete = st_renderbuffer_delete; - strb->Base.AllocStorage = st_renderbuffer_alloc_storage; - strb->Base.GetPointer = null_get_pointer; - - /* surface is allocated in st_renderbuffer_alloc_storage() */ - strb->surface = NULL; - - return &strb->Base; -} - - - - -/** - * Called via ctx->Driver.BindFramebufferEXT(). - */ -static void -st_bind_framebuffer(struct gl_context *ctx, GLenum target, - struct gl_framebuffer *fb, struct gl_framebuffer *fbread) -{ - -} - -/** - * Called by ctx->Driver.FramebufferRenderbuffer - */ -static void -st_framebuffer_renderbuffer(struct gl_context *ctx, - struct gl_framebuffer *fb, - GLenum attachment, - struct gl_renderbuffer *rb) -{ - /* XXX no need for derivation? */ - _mesa_framebuffer_renderbuffer(ctx, fb, attachment, rb); -} - - -/** - * Called by ctx->Driver.RenderTexture - */ -static void -st_render_texture(struct gl_context *ctx, - struct gl_framebuffer *fb, - struct gl_renderbuffer_attachment *att) -{ - struct st_context *st = st_context(ctx); - struct pipe_context *pipe = st->pipe; - struct st_renderbuffer *strb; - struct gl_renderbuffer *rb; - struct pipe_resource *pt = st_get_texobj_resource(att->Texture); - struct st_texture_object *stObj; - const struct gl_texture_image *texImage; - struct pipe_surface surf_tmpl; - - /* When would this fail? Perhaps assert? */ - if (!pt) - return; - - /* get pointer to texture image we're rendeing to */ - texImage = _mesa_get_attachment_teximage(att); - - /* create new renderbuffer which wraps the texture image */ - rb = st_new_renderbuffer(ctx, 0); - if (!rb) { - _mesa_error(ctx, GL_OUT_OF_MEMORY, "glFramebufferTexture()"); - return; - } - - _mesa_reference_renderbuffer(&att->Renderbuffer, rb); - assert(rb->RefCount == 1); - rb->AllocStorage = NULL; /* should not get called */ - strb = st_renderbuffer(rb); - - assert(strb->Base.RefCount > 0); - - /* get the texture for the texture object */ - stObj = st_texture_object(att->Texture); - - /* point renderbuffer at texobject */ - strb->rtt = stObj; - strb->rtt_level = att->TextureLevel; - strb->rtt_face = att->CubeMapFace; - strb->rtt_slice = att->Zoffset; - - rb->Width = texImage->Width2; - rb->Height = texImage->Height2; - rb->_BaseFormat = texImage->_BaseFormat; - /*printf("***** render to texture level %d: %d x %d\n", att->TextureLevel, rb->Width, rb->Height);*/ - - /*printf("***** pipe texture %d x %d\n", pt->width0, pt->height0);*/ - - pipe_resource_reference( &strb->texture, pt ); - - pipe_surface_reference(&strb->surface, NULL); - - pipe_sampler_view_reference(&strb->sampler_view, - st_get_texture_sampler_view(stObj, pipe)); - - assert(strb->rtt_level <= strb->texture->last_level); - - /* new surface for rendering into the texture */ - memset(&surf_tmpl, 0, sizeof(surf_tmpl)); - surf_tmpl.format = ctx->Color.sRGBEnabled ? strb->texture->format : util_format_linear(strb->texture->format); - surf_tmpl.usage = PIPE_BIND_RENDER_TARGET; - surf_tmpl.u.tex.level = strb->rtt_level; - surf_tmpl.u.tex.first_layer = strb->rtt_face + strb->rtt_slice; - surf_tmpl.u.tex.last_layer = strb->rtt_face + strb->rtt_slice; - strb->surface = pipe->create_surface(pipe, - strb->texture, - &surf_tmpl); - - strb->format = pt->format; - - strb->Base.Format = st_pipe_format_to_mesa_format(pt->format); - strb->Base.DataType = st_format_datatype(pt->format); - - /* - printf("RENDER TO TEXTURE obj=%p pt=%p surf=%p %d x %d\n", - att->Texture, pt, strb->surface, rb->Width, rb->Height); - */ - - /* Invalidate buffer state so that the pipe's framebuffer state - * gets updated. - * That's where the new renderbuffer (which we just created) gets - * passed to the pipe as a (color/depth) render target. - */ - st_invalidate_state(ctx, _NEW_BUFFERS); -} - - -/** - * Called via ctx->Driver.FinishRenderTexture. - */ -static void -st_finish_render_texture(struct gl_context *ctx, - struct gl_renderbuffer_attachment *att) -{ - struct st_renderbuffer *strb = st_renderbuffer(att->Renderbuffer); - - if (!strb) - return; - - strb->rtt = NULL; - - /* - printf("FINISH RENDER TO TEXTURE surf=%p\n", strb->surface); - */ - - /* restore previous framebuffer state */ - st_invalidate_state(ctx, _NEW_BUFFERS); -} - - -/** - * Validate a renderbuffer attachment for a particular set of bindings. - */ -static GLboolean -st_validate_attachment(struct gl_context *ctx, - struct pipe_screen *screen, - const struct gl_renderbuffer_attachment *att, - unsigned bindings) -{ - const struct st_texture_object *stObj = st_texture_object(att->Texture); - enum pipe_format format; - gl_format texFormat; - - /* Only validate texture attachments for now, since - * st_renderbuffer_alloc_storage makes sure that - * the format is supported. - */ - if (att->Type != GL_TEXTURE) - return GL_TRUE; - - if (!stObj) - return GL_FALSE; - - format = stObj->pt->format; - texFormat = _mesa_get_attachment_teximage_const(att)->TexFormat; - - /* If the encoding is sRGB and sRGB rendering cannot be enabled, - * check for linear format support instead. - * Later when we create a surface, we change the format to a linear one. */ - if (!ctx->Const.sRGBCapable && - _mesa_get_format_color_encoding(texFormat) == GL_SRGB) { - const gl_format linearFormat = _mesa_get_srgb_format_linear(texFormat); - format = st_mesa_format_to_pipe_format(linearFormat); - } - - return screen->is_format_supported(screen, format, - PIPE_TEXTURE_2D, - stObj->pt->nr_samples, bindings); -} - - -/** - * Check if two renderbuffer attachments name a combined depth/stencil - * renderbuffer. - */ -GLboolean -st_is_depth_stencil_combined(const struct gl_renderbuffer_attachment *depth, - const struct gl_renderbuffer_attachment *stencil) -{ - assert(depth && stencil); - - if (depth->Type == stencil->Type) { - if (depth->Type == GL_RENDERBUFFER_EXT && - depth->Renderbuffer == stencil->Renderbuffer) - return GL_TRUE; - - if (depth->Type == GL_TEXTURE && - depth->Texture == stencil->Texture) - return GL_TRUE; - } - - return GL_FALSE; -} - - -/** - * Check that the framebuffer configuration is valid in terms of what - * the driver can support. - * - * For Gallium we only supports combined Z+stencil, not separate buffers. - */ -static void -st_validate_framebuffer(struct gl_context *ctx, struct gl_framebuffer *fb) -{ - struct st_context *st = st_context(ctx); - struct pipe_screen *screen = st->pipe->screen; - const struct gl_renderbuffer_attachment *depth = - &fb->Attachment[BUFFER_DEPTH]; - const struct gl_renderbuffer_attachment *stencil = - &fb->Attachment[BUFFER_STENCIL]; - GLuint i; - enum pipe_format first_format = PIPE_FORMAT_NONE; - boolean mixed_formats = - screen->get_param(screen, PIPE_CAP_MIXED_COLORBUFFER_FORMATS) != 0; - - if (depth->Type && stencil->Type && depth->Type != stencil->Type) { - fb->_Status = GL_FRAMEBUFFER_UNSUPPORTED_EXT; - return; - } - if (depth->Type == GL_RENDERBUFFER_EXT && - stencil->Type == GL_RENDERBUFFER_EXT && - depth->Renderbuffer != stencil->Renderbuffer) { - fb->_Status = GL_FRAMEBUFFER_UNSUPPORTED_EXT; - return; - } - if (depth->Type == GL_TEXTURE && - stencil->Type == GL_TEXTURE && - depth->Texture != stencil->Texture) { - fb->_Status = GL_FRAMEBUFFER_UNSUPPORTED_EXT; - return; - } - - if (!st_validate_attachment(ctx, - screen, - depth, - PIPE_BIND_DEPTH_STENCIL)) { - fb->_Status = GL_FRAMEBUFFER_UNSUPPORTED_EXT; - return; - } - if (!st_validate_attachment(ctx, - screen, - stencil, - PIPE_BIND_DEPTH_STENCIL)) { - fb->_Status = GL_FRAMEBUFFER_UNSUPPORTED_EXT; - return; - } - for (i = 0; i < ctx->Const.MaxColorAttachments; i++) { - struct gl_renderbuffer_attachment *att = - &fb->Attachment[BUFFER_COLOR0 + i]; - enum pipe_format format; - - if (!st_validate_attachment(ctx, - screen, - att, - PIPE_BIND_RENDER_TARGET)) { - fb->_Status = GL_FRAMEBUFFER_UNSUPPORTED_EXT; - return; - } - - if (!mixed_formats) { - /* Disallow mixed formats. */ - if (att->Type != GL_NONE) { - format = st_renderbuffer(att->Renderbuffer)->surface->format; - } else { - continue; - } - - if (first_format == PIPE_FORMAT_NONE) { - first_format = format; - } else if (format != first_format) { - fb->_Status = GL_FRAMEBUFFER_UNSUPPORTED_EXT; - return; - } - } - } -} - - -/** - * Called via glDrawBuffer. - */ -static void -st_DrawBuffers(struct gl_context *ctx, GLsizei count, const GLenum *buffers) -{ - struct st_context *st = st_context(ctx); - struct gl_framebuffer *fb = ctx->DrawBuffer; - GLuint i; - - (void) count; - (void) buffers; - - /* add the renderbuffers on demand */ - for (i = 0; i < fb->_NumColorDrawBuffers; i++) { - gl_buffer_index idx = fb->_ColorDrawBufferIndexes[i]; - st_manager_add_color_renderbuffer(st, fb, idx); - } -} - - -/** - * Called via glReadBuffer. - */ -static void -st_ReadBuffer(struct gl_context *ctx, GLenum buffer) -{ - struct st_context *st = st_context(ctx); - struct gl_framebuffer *fb = ctx->ReadBuffer; - - (void) buffer; - - /* add the renderbuffer on demand */ - st_manager_add_color_renderbuffer(st, fb, fb->_ColorReadBufferIndex); -} - - -void st_init_fbo_functions(struct dd_function_table *functions) -{ -#if FEATURE_EXT_framebuffer_object - functions->NewFramebuffer = st_new_framebuffer; - functions->NewRenderbuffer = st_new_renderbuffer; - functions->BindFramebuffer = st_bind_framebuffer; - functions->FramebufferRenderbuffer = st_framebuffer_renderbuffer; - functions->RenderTexture = st_render_texture; - functions->FinishRenderTexture = st_finish_render_texture; - functions->ValidateFramebuffer = st_validate_framebuffer; -#endif - /* no longer needed by core Mesa, drivers handle resizes... - functions->ResizeBuffers = st_resize_buffers; - */ - - functions->DrawBuffers = st_DrawBuffers; - functions->ReadBuffer = st_ReadBuffer; -} - -/* XXX unused ? */ -struct pipe_sampler_view * -st_get_renderbuffer_sampler_view(struct st_renderbuffer *rb, - struct pipe_context *pipe) -{ - if (!rb->sampler_view) { - rb->sampler_view = st_create_texture_sampler_view(pipe, rb->texture); - } - - return rb->sampler_view; -} +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + + +/** + * Framebuffer/renderbuffer functions. + * + * \author Brian Paul + */ + + +#include "main/imports.h" +#include "main/context.h" +#include "main/fbobject.h" +#include "main/framebuffer.h" +#include "main/macros.h" +#include "main/mfeatures.h" +#include "main/renderbuffer.h" + +#include "pipe/p_context.h" +#include "pipe/p_defines.h" +#include "pipe/p_screen.h" +#include "st_context.h" +#include "st_cb_fbo.h" +#include "st_cb_flush.h" +#include "st_format.h" +#include "st_texture.h" +#include "st_manager.h" + +#include "util/u_format.h" +#include "util/u_inlines.h" +#include "util/u_surface.h" + + +/** + * gl_renderbuffer::AllocStorage() + * This is called to allocate the original drawing surface, and + * during window resize. + */ +static GLboolean +st_renderbuffer_alloc_storage(struct gl_context * ctx, + struct gl_renderbuffer *rb, + GLenum internalFormat, + GLuint width, GLuint height) +{ + struct st_context *st = st_context(ctx); + struct pipe_context *pipe = st->pipe; + struct pipe_screen *screen = st->pipe->screen; + struct st_renderbuffer *strb = st_renderbuffer(rb); + enum pipe_format format; + struct pipe_surface surf_tmpl; + + format = st_choose_renderbuffer_format(screen, internalFormat, + rb->NumSamples); + + if (format == PIPE_FORMAT_NONE) { + return FALSE; + } + + /* init renderbuffer fields */ + strb->Base.Width = width; + strb->Base.Height = height; + strb->Base.Format = st_pipe_format_to_mesa_format(format); + strb->Base._BaseFormat = _mesa_base_fbo_format(ctx, internalFormat); + strb->Base.DataType = st_format_datatype(format); + strb->format = format; + + strb->defined = GL_FALSE; /* undefined contents now */ + + if (strb->software) { + size_t size; + + free(strb->data); + + assert(strb->format != PIPE_FORMAT_NONE); + + strb->stride = util_format_get_stride(strb->format, width); + size = util_format_get_2d_size(strb->format, strb->stride, height); + + strb->data = malloc(size); + + return strb->data != NULL; + } + else { + struct pipe_resource template; + + /* Free the old surface and texture + */ + pipe_surface_reference( &strb->surface, NULL ); + pipe_resource_reference( &strb->texture, NULL ); + pipe_sampler_view_reference(&strb->sampler_view, NULL); + + /* Setup new texture template. + */ + memset(&template, 0, sizeof(template)); + template.target = st->internal_target; + template.format = format; + template.width0 = width; + template.height0 = height; + template.depth0 = 1; + template.array_size = 1; + template.last_level = 0; + template.nr_samples = rb->NumSamples; + if (util_format_is_depth_or_stencil(format)) { + template.bind = PIPE_BIND_DEPTH_STENCIL; + } + else { + template.bind = (PIPE_BIND_DISPLAY_TARGET | + PIPE_BIND_RENDER_TARGET); + } + + strb->texture = screen->resource_create(screen, &template); + + if (!strb->texture) + return FALSE; + + memset(&surf_tmpl, 0, sizeof(surf_tmpl)); + u_surface_default_template(&surf_tmpl, strb->texture, template.bind); + strb->surface = pipe->create_surface(pipe, + strb->texture, + &surf_tmpl); + if (strb->surface) { + assert(strb->surface->texture); + assert(strb->surface->format); + assert(strb->surface->width == width); + assert(strb->surface->height == height); + } + + return strb->surface != NULL; + } +} + + +/** + * gl_renderbuffer::Delete() + */ +static void +st_renderbuffer_delete(struct gl_renderbuffer *rb) +{ + struct st_renderbuffer *strb = st_renderbuffer(rb); + ASSERT(strb); + pipe_surface_reference(&strb->surface, NULL); + pipe_resource_reference(&strb->texture, NULL); + pipe_sampler_view_reference(&strb->sampler_view, NULL); + free(strb->data); + free(strb); +} + + +/** + * gl_renderbuffer::GetPointer() + */ +static void * +null_get_pointer(struct gl_context * ctx, struct gl_renderbuffer *rb, + GLint x, GLint y) +{ + /* By returning NULL we force all software rendering to go through + * the span routines. + */ +#if 0 + assert(0); /* Should never get called with softpipe */ +#endif + return NULL; +} + + +/** + * Called via ctx->Driver.NewFramebuffer() + */ +static struct gl_framebuffer * +st_new_framebuffer(struct gl_context *ctx, GLuint name) +{ + /* XXX not sure we need to subclass gl_framebuffer for pipe */ + return _mesa_new_framebuffer(ctx, name); +} + + +/** + * Called via ctx->Driver.NewRenderbuffer() + */ +static struct gl_renderbuffer * +st_new_renderbuffer(struct gl_context *ctx, GLuint name) +{ + struct st_renderbuffer *strb = ST_CALLOC_STRUCT(st_renderbuffer); + if (strb) { + _mesa_init_renderbuffer(&strb->Base, name); + strb->Base.Delete = st_renderbuffer_delete; + strb->Base.AllocStorage = st_renderbuffer_alloc_storage; + strb->Base.GetPointer = null_get_pointer; + strb->format = PIPE_FORMAT_NONE; + return &strb->Base; + } + return NULL; +} + + +/** + * Allocate a renderbuffer for a an on-screen window (not a user-created + * renderbuffer). The window system code determines the format. + */ +struct gl_renderbuffer * +st_new_renderbuffer_fb(enum pipe_format format, int samples, boolean sw) +{ + struct st_renderbuffer *strb; + + strb = ST_CALLOC_STRUCT(st_renderbuffer); + if (!strb) { + _mesa_error(NULL, GL_OUT_OF_MEMORY, "creating renderbuffer"); + return NULL; + } + + _mesa_init_renderbuffer(&strb->Base, 0); + strb->Base.ClassID = 0x4242; /* just a unique value */ + strb->Base.NumSamples = samples; + strb->Base.Format = st_pipe_format_to_mesa_format(format); + strb->Base._BaseFormat = _mesa_get_format_base_format(strb->Base.Format); + strb->Base.DataType = st_format_datatype(format); + strb->format = format; + strb->software = sw; + + switch (format) { + case PIPE_FORMAT_R8G8B8A8_UNORM: + case PIPE_FORMAT_B8G8R8A8_UNORM: + case PIPE_FORMAT_A8R8G8B8_UNORM: + case PIPE_FORMAT_R8G8B8X8_UNORM: + case PIPE_FORMAT_B8G8R8X8_UNORM: + case PIPE_FORMAT_X8R8G8B8_UNORM: + case PIPE_FORMAT_B5G5R5A1_UNORM: + case PIPE_FORMAT_B4G4R4A4_UNORM: + case PIPE_FORMAT_B5G6R5_UNORM: + strb->Base.InternalFormat = GL_RGBA; + break; + case PIPE_FORMAT_Z16_UNORM: + strb->Base.InternalFormat = GL_DEPTH_COMPONENT16; + break; + case PIPE_FORMAT_Z32_UNORM: + strb->Base.InternalFormat = GL_DEPTH_COMPONENT32; + break; + case PIPE_FORMAT_Z24_UNORM_S8_USCALED: + case PIPE_FORMAT_S8_USCALED_Z24_UNORM: + case PIPE_FORMAT_Z24X8_UNORM: + case PIPE_FORMAT_X8Z24_UNORM: + strb->Base.InternalFormat = GL_DEPTH24_STENCIL8_EXT; + break; + case PIPE_FORMAT_S8_USCALED: + strb->Base.InternalFormat = GL_STENCIL_INDEX8_EXT; + break; + case PIPE_FORMAT_R16G16B16A16_SNORM: + strb->Base.InternalFormat = GL_RGBA16; + break; + case PIPE_FORMAT_R8_UNORM: + strb->Base.InternalFormat = GL_R8; + break; + case PIPE_FORMAT_R8G8_UNORM: + strb->Base.InternalFormat = GL_RG8; + break; + case PIPE_FORMAT_R16_UNORM: + strb->Base.InternalFormat = GL_R16; + break; + case PIPE_FORMAT_R16G16_UNORM: + strb->Base.InternalFormat = GL_RG16; + break; + default: + _mesa_problem(NULL, + "Unexpected format in st_new_renderbuffer_fb"); + free(strb); + return NULL; + } + + /* st-specific methods */ + strb->Base.Delete = st_renderbuffer_delete; + strb->Base.AllocStorage = st_renderbuffer_alloc_storage; + strb->Base.GetPointer = null_get_pointer; + + /* surface is allocated in st_renderbuffer_alloc_storage() */ + strb->surface = NULL; + + return &strb->Base; +} + + + + +/** + * Called via ctx->Driver.BindFramebufferEXT(). + */ +static void +st_bind_framebuffer(struct gl_context *ctx, GLenum target, + struct gl_framebuffer *fb, struct gl_framebuffer *fbread) +{ + +} + +/** + * Called by ctx->Driver.FramebufferRenderbuffer + */ +static void +st_framebuffer_renderbuffer(struct gl_context *ctx, + struct gl_framebuffer *fb, + GLenum attachment, + struct gl_renderbuffer *rb) +{ + /* XXX no need for derivation? */ + _mesa_framebuffer_renderbuffer(ctx, fb, attachment, rb); +} + + +/** + * Called by ctx->Driver.RenderTexture + */ +static void +st_render_texture(struct gl_context *ctx, + struct gl_framebuffer *fb, + struct gl_renderbuffer_attachment *att) +{ + struct st_context *st = st_context(ctx); + struct pipe_context *pipe = st->pipe; + struct st_renderbuffer *strb; + struct gl_renderbuffer *rb; + struct pipe_resource *pt = st_get_texobj_resource(att->Texture); + struct st_texture_object *stObj; + const struct gl_texture_image *texImage; + struct pipe_surface surf_tmpl; + + /* When would this fail? Perhaps assert? */ + if (!pt) + return; + + /* get pointer to texture image we're rendeing to */ + texImage = _mesa_get_attachment_teximage(att); + + /* create new renderbuffer which wraps the texture image */ + rb = st_new_renderbuffer(ctx, 0); + if (!rb) { + _mesa_error(ctx, GL_OUT_OF_MEMORY, "glFramebufferTexture()"); + return; + } + + _mesa_reference_renderbuffer(&att->Renderbuffer, rb); + assert(rb->RefCount == 1); + rb->AllocStorage = NULL; /* should not get called */ + strb = st_renderbuffer(rb); + + assert(strb->Base.RefCount > 0); + + /* get the texture for the texture object */ + stObj = st_texture_object(att->Texture); + + /* point renderbuffer at texobject */ + strb->rtt = stObj; + strb->rtt_level = att->TextureLevel; + strb->rtt_face = att->CubeMapFace; + strb->rtt_slice = att->Zoffset; + + rb->Width = texImage->Width2; + rb->Height = texImage->Height2; + rb->_BaseFormat = texImage->_BaseFormat; + /*printf("***** render to texture level %d: %d x %d\n", att->TextureLevel, rb->Width, rb->Height);*/ + + /*printf("***** pipe texture %d x %d\n", pt->width0, pt->height0);*/ + + pipe_resource_reference( &strb->texture, pt ); + + pipe_surface_reference(&strb->surface, NULL); + + pipe_sampler_view_reference(&strb->sampler_view, + st_get_texture_sampler_view(stObj, pipe)); + + assert(strb->rtt_level <= strb->texture->last_level); + + /* new surface for rendering into the texture */ + memset(&surf_tmpl, 0, sizeof(surf_tmpl)); + surf_tmpl.format = ctx->Color.sRGBEnabled ? strb->texture->format : util_format_linear(strb->texture->format); + surf_tmpl.usage = PIPE_BIND_RENDER_TARGET; + surf_tmpl.u.tex.level = strb->rtt_level; + surf_tmpl.u.tex.first_layer = strb->rtt_face + strb->rtt_slice; + surf_tmpl.u.tex.last_layer = strb->rtt_face + strb->rtt_slice; + strb->surface = pipe->create_surface(pipe, + strb->texture, + &surf_tmpl); + + strb->format = pt->format; + + strb->Base.Format = st_pipe_format_to_mesa_format(pt->format); + strb->Base.DataType = st_format_datatype(pt->format); + + /* + printf("RENDER TO TEXTURE obj=%p pt=%p surf=%p %d x %d\n", + att->Texture, pt, strb->surface, rb->Width, rb->Height); + */ + + /* Invalidate buffer state so that the pipe's framebuffer state + * gets updated. + * That's where the new renderbuffer (which we just created) gets + * passed to the pipe as a (color/depth) render target. + */ + st_invalidate_state(ctx, _NEW_BUFFERS); +} + + +/** + * Called via ctx->Driver.FinishRenderTexture. + */ +static void +st_finish_render_texture(struct gl_context *ctx, + struct gl_renderbuffer_attachment *att) +{ + struct st_renderbuffer *strb = st_renderbuffer(att->Renderbuffer); + + if (!strb) + return; + + strb->rtt = NULL; + + /* + printf("FINISH RENDER TO TEXTURE surf=%p\n", strb->surface); + */ + + /* restore previous framebuffer state */ + st_invalidate_state(ctx, _NEW_BUFFERS); +} + + +/** + * Validate a renderbuffer attachment for a particular set of bindings. + */ +static GLboolean +st_validate_attachment(struct gl_context *ctx, + struct pipe_screen *screen, + const struct gl_renderbuffer_attachment *att, + unsigned bindings) +{ + const struct st_texture_object *stObj = st_texture_object(att->Texture); + enum pipe_format format; + gl_format texFormat; + + /* Only validate texture attachments for now, since + * st_renderbuffer_alloc_storage makes sure that + * the format is supported. + */ + if (att->Type != GL_TEXTURE) + return GL_TRUE; + + if (!stObj) + return GL_FALSE; + + format = stObj->pt->format; + texFormat = _mesa_get_attachment_teximage_const(att)->TexFormat; + + /* If the encoding is sRGB and sRGB rendering cannot be enabled, + * check for linear format support instead. + * Later when we create a surface, we change the format to a linear one. */ + if (!ctx->Const.sRGBCapable && + _mesa_get_format_color_encoding(texFormat) == GL_SRGB) { + const gl_format linearFormat = _mesa_get_srgb_format_linear(texFormat); + format = st_mesa_format_to_pipe_format(linearFormat); + } + + return screen->is_format_supported(screen, format, + PIPE_TEXTURE_2D, + stObj->pt->nr_samples, bindings); +} + + +/** + * Check if two renderbuffer attachments name a combined depth/stencil + * renderbuffer. + */ +GLboolean +st_is_depth_stencil_combined(const struct gl_renderbuffer_attachment *depth, + const struct gl_renderbuffer_attachment *stencil) +{ + assert(depth && stencil); + + if (depth->Type == stencil->Type) { + if (depth->Type == GL_RENDERBUFFER_EXT && + depth->Renderbuffer == stencil->Renderbuffer) + return GL_TRUE; + + if (depth->Type == GL_TEXTURE && + depth->Texture == stencil->Texture) + return GL_TRUE; + } + + return GL_FALSE; +} + + +/** + * Check that the framebuffer configuration is valid in terms of what + * the driver can support. + * + * For Gallium we only supports combined Z+stencil, not separate buffers. + */ +static void +st_validate_framebuffer(struct gl_context *ctx, struct gl_framebuffer *fb) +{ + struct st_context *st = st_context(ctx); + struct pipe_screen *screen = st->pipe->screen; + const struct gl_renderbuffer_attachment *depth = + &fb->Attachment[BUFFER_DEPTH]; + const struct gl_renderbuffer_attachment *stencil = + &fb->Attachment[BUFFER_STENCIL]; + GLuint i; + enum pipe_format first_format = PIPE_FORMAT_NONE; + boolean mixed_formats = + screen->get_param(screen, PIPE_CAP_MIXED_COLORBUFFER_FORMATS) != 0; + + if (depth->Type && stencil->Type && depth->Type != stencil->Type) { + fb->_Status = GL_FRAMEBUFFER_UNSUPPORTED_EXT; + return; + } + if (depth->Type == GL_RENDERBUFFER_EXT && + stencil->Type == GL_RENDERBUFFER_EXT && + depth->Renderbuffer != stencil->Renderbuffer) { + fb->_Status = GL_FRAMEBUFFER_UNSUPPORTED_EXT; + return; + } + if (depth->Type == GL_TEXTURE && + stencil->Type == GL_TEXTURE && + depth->Texture != stencil->Texture) { + fb->_Status = GL_FRAMEBUFFER_UNSUPPORTED_EXT; + return; + } + + if (!st_validate_attachment(ctx, + screen, + depth, + PIPE_BIND_DEPTH_STENCIL)) { + fb->_Status = GL_FRAMEBUFFER_UNSUPPORTED_EXT; + return; + } + if (!st_validate_attachment(ctx, + screen, + stencil, + PIPE_BIND_DEPTH_STENCIL)) { + fb->_Status = GL_FRAMEBUFFER_UNSUPPORTED_EXT; + return; + } + for (i = 0; i < ctx->Const.MaxColorAttachments; i++) { + struct gl_renderbuffer_attachment *att = + &fb->Attachment[BUFFER_COLOR0 + i]; + enum pipe_format format; + + if (!st_validate_attachment(ctx, + screen, + att, + PIPE_BIND_RENDER_TARGET)) { + fb->_Status = GL_FRAMEBUFFER_UNSUPPORTED_EXT; + return; + } + + if (!mixed_formats) { + /* Disallow mixed formats. */ + if (att->Type != GL_NONE) { + format = st_renderbuffer(att->Renderbuffer)->surface->format; + } else { + continue; + } + + if (first_format == PIPE_FORMAT_NONE) { + first_format = format; + } else if (format != first_format) { + fb->_Status = GL_FRAMEBUFFER_UNSUPPORTED_EXT; + return; + } + } + } +} + + +/** + * Called via glDrawBuffer. + */ +static void +st_DrawBuffers(struct gl_context *ctx, GLsizei count, const GLenum *buffers) +{ + struct st_context *st = st_context(ctx); + struct gl_framebuffer *fb = ctx->DrawBuffer; + GLuint i; + + (void) count; + (void) buffers; + + /* add the renderbuffers on demand */ + for (i = 0; i < fb->_NumColorDrawBuffers; i++) { + gl_buffer_index idx = fb->_ColorDrawBufferIndexes[i]; + st_manager_add_color_renderbuffer(st, fb, idx); + } +} + + +/** + * Called via glReadBuffer. + */ +static void +st_ReadBuffer(struct gl_context *ctx, GLenum buffer) +{ + struct st_context *st = st_context(ctx); + struct gl_framebuffer *fb = ctx->ReadBuffer; + + (void) buffer; + + /* add the renderbuffer on demand */ + st_manager_add_color_renderbuffer(st, fb, fb->_ColorReadBufferIndex); +} + + +void st_init_fbo_functions(struct dd_function_table *functions) +{ +#if FEATURE_EXT_framebuffer_object + functions->NewFramebuffer = st_new_framebuffer; + functions->NewRenderbuffer = st_new_renderbuffer; + functions->BindFramebuffer = st_bind_framebuffer; + functions->FramebufferRenderbuffer = st_framebuffer_renderbuffer; + functions->RenderTexture = st_render_texture; + functions->FinishRenderTexture = st_finish_render_texture; + functions->ValidateFramebuffer = st_validate_framebuffer; +#endif + /* no longer needed by core Mesa, drivers handle resizes... + functions->ResizeBuffers = st_resize_buffers; + */ + + functions->DrawBuffers = st_DrawBuffers; + functions->ReadBuffer = st_ReadBuffer; +} + +/* XXX unused ? */ +struct pipe_sampler_view * +st_get_renderbuffer_sampler_view(struct st_renderbuffer *rb, + struct pipe_context *pipe) +{ + if (!rb->sampler_view) { + rb->sampler_view = st_create_texture_sampler_view(pipe, rb->texture); + } + + return rb->sampler_view; +} diff --git a/mesalib/src/mesa/state_tracker/st_cb_texture.c b/mesalib/src/mesa/state_tracker/st_cb_texture.c index 9d824b46c..88f62902b 100644 --- a/mesalib/src/mesa/state_tracker/st_cb_texture.c +++ b/mesalib/src/mesa/state_tracker/st_cb_texture.c @@ -795,6 +795,11 @@ decompress_with_blit(struct gl_context * ctx, GLenum target, GLint level, return; } + /* Disable conditional rendering. */ + if (st->render_condition) { + pipe->render_condition(pipe, NULL, 0); + } + /* blit/render/decompress */ util_blit_pixels_tex(st->blit, src_view, /* pipe_resource (src) */ @@ -806,6 +811,12 @@ decompress_with_blit(struct gl_context * ctx, GLenum target, GLint level, 0.0, /* z */ PIPE_TEX_MIPFILTER_NEAREST); + /* Restore conditional rendering state. */ + if (st->render_condition) { + pipe->render_condition(pipe, st->render_condition, + st->condition_mode); + } + /* map the dst_surface so we can read from it */ tex_xfer = pipe_get_transfer(pipe, dst_texture, 0, 0, @@ -1556,6 +1567,11 @@ st_copy_texsubimage(struct gl_context *ctx, srcY1 = srcY0 + height; } + /* Disable conditional rendering. */ + if (st->render_condition) { + pipe->render_condition(pipe, NULL, 0); + } + util_blit_pixels_writemask(st->blit, strb->texture, strb->surface->u.tex.level, @@ -1567,6 +1583,13 @@ st_copy_texsubimage(struct gl_context *ctx, destX + width, destY + height, 0.0, PIPE_TEX_MIPFILTER_NEAREST, format_writemask); + + /* Restore conditional rendering state. */ + if (st->render_condition) { + pipe->render_condition(pipe, st->render_condition, + st->condition_mode); + } + use_fallback = GL_FALSE; } diff --git a/mesalib/src/mesa/state_tracker/st_context.h b/mesalib/src/mesa/state_tracker/st_context.h index c6fc31801..ff207039d 100644 --- a/mesalib/src/mesa/state_tracker/st_context.h +++ b/mesalib/src/mesa/state_tracker/st_context.h @@ -200,6 +200,10 @@ struct st_context GLsizei stride; } user_attrib[PIPE_MAX_ATTRIBS]; unsigned num_user_attribs; + + /* Active render condition. */ + struct pipe_query *render_condition; + unsigned condition_mode; }; diff --git a/mesalib/src/mesa/state_tracker/st_format.c b/mesalib/src/mesa/state_tracker/st_format.c index de30b4fc6..dc8551dfe 100644 --- a/mesalib/src/mesa/state_tracker/st_format.c +++ b/mesalib/src/mesa/state_tracker/st_format.c @@ -595,6 +595,14 @@ struct format_mapping PIPE_FORMAT_A8B8G8R8_SRGB, \ 0 +#define DEFAULT_DEPTH_FORMATS \ + PIPE_FORMAT_Z24X8_UNORM, \ + PIPE_FORMAT_X8Z24_UNORM, \ + PIPE_FORMAT_Z16_UNORM, \ + PIPE_FORMAT_Z24_UNORM_S8_USCALED, \ + PIPE_FORMAT_S8_USCALED_Z24_UNORM, \ + 0 + /** * This table maps OpenGL texture format enums to Gallium pipe_format enums. * Multiple GL enums might map to multiple pipe_formats. @@ -604,7 +612,7 @@ static struct format_mapping format_map[] = { /* Basic RGB, RGBA formats */ { { GL_RGB10, GL_RGB10_A2, 0 }, - { PIPE_FORMAT_B10G10R10A2_UNORM, 0 } + { PIPE_FORMAT_B10G10R10A2_UNORM, DEFAULT_RGBA_FORMATS } }, { { 4, GL_RGBA, GL_RGBA8, 0 }, @@ -612,7 +620,7 @@ static struct format_mapping format_map[] = { }, { { GL_BGRA, 0 }, - { PIPE_FORMAT_B8G8R8A8_UNORM, DEFAULT_RGB_FORMATS, 0 } + { PIPE_FORMAT_B8G8R8A8_UNORM, DEFAULT_RGBA_FORMATS } }, { { 3, GL_RGB, GL_RGB8, 0 }, @@ -620,7 +628,7 @@ static struct format_mapping format_map[] = { }, { { GL_RGB12, GL_RGB16, GL_RGBA12, GL_RGBA16, 0 }, - { PIPE_FORMAT_R16G16B16A16_UNORM, DEFAULT_RGB_FORMATS, 0 } + { PIPE_FORMAT_R16G16B16A16_UNORM, DEFAULT_RGBA_FORMATS } }, { { GL_RGBA4, GL_RGBA2, 0 }, @@ -628,7 +636,7 @@ static struct format_mapping format_map[] = { }, { { GL_RGB5_A1, 0 }, - { PIPE_FORMAT_B5G5R5A1_UNORM, DEFAULT_RGBA_FORMATS, 0 } + { PIPE_FORMAT_B5G5R5A1_UNORM, DEFAULT_RGBA_FORMATS } }, { { GL_R3_G3_B2, 0 }, @@ -655,11 +663,11 @@ static struct format_mapping format_map[] = { /* basic Luminance formats */ { { GL_LUMINANCE12, GL_LUMINANCE16, 0 }, - { PIPE_FORMAT_L16_UNORM, PIPE_FORMAT_L8_UNORM, DEFAULT_RGBA_FORMATS, 0 } + { PIPE_FORMAT_L16_UNORM, PIPE_FORMAT_L8_UNORM, DEFAULT_RGB_FORMATS } }, { { 1, GL_LUMINANCE, GL_LUMINANCE4, GL_LUMINANCE8, 0 }, - { PIPE_FORMAT_L8_UNORM, DEFAULT_RGBA_FORMATS } + { PIPE_FORMAT_L8_UNORM, DEFAULT_RGB_FORMATS } }, /* basic Luminance/Alpha formats */ @@ -667,7 +675,7 @@ static struct format_mapping format_map[] = { { GL_LUMINANCE12_ALPHA4, GL_LUMINANCE12_ALPHA12, GL_LUMINANCE16_ALPHA16, 0}, { PIPE_FORMAT_L16A16_UNORM, PIPE_FORMAT_L8A8_UNORM, - PIPE_FORMAT_L8A8_UNORM, DEFAULT_RGBA_FORMATS } + DEFAULT_RGBA_FORMATS } }, { { 2, GL_LUMINANCE_ALPHA, GL_LUMINANCE6_ALPHA2, GL_LUMINANCE8_ALPHA8, 0 }, @@ -675,7 +683,7 @@ static struct format_mapping format_map[] = { }, { { GL_LUMINANCE4_ALPHA4, 0 }, - { PIPE_FORMAT_L4A4_UNORM, PIPE_FORMAT_L4A4_UNORM, + { PIPE_FORMAT_L4A4_UNORM, PIPE_FORMAT_L8A8_UNORM, DEFAULT_RGBA_FORMATS } }, @@ -699,11 +707,11 @@ static struct format_mapping format_map[] = { /* compressed formats */ /* XXX PIPE_BIND_SAMPLER_VIEW only */ { { GL_COMPRESSED_RGB, 0 }, - { PIPE_FORMAT_DXT1_RGB, 0 } + { PIPE_FORMAT_DXT1_RGB, DEFAULT_RGB_FORMATS } }, { { GL_COMPRESSED_RGBA, 0 }, - { PIPE_FORMAT_DXT5_RGBA, 0 } + { PIPE_FORMAT_DXT5_RGBA, DEFAULT_RGBA_FORMATS } }, { { GL_RGB_S3TC, GL_RGB4_S3TC, GL_COMPRESSED_RGB_S3TC_DXT1_EXT, 0 }, @@ -729,31 +737,27 @@ static struct format_mapping format_map[] = { }, { { GL_COMPRESSED_RGBA_FXT1_3DFX, 0 }, - { PIPE_FORMAT_RGB_FXT1, 0 } + { PIPE_FORMAT_RGBA_FXT1, 0 } }, #endif /* Depth formats */ { { GL_DEPTH_COMPONENT16, 0 }, - { PIPE_FORMAT_Z16_UNORM, PIPE_FORMAT_Z24_UNORM_S8_USCALED, - PIPE_FORMAT_S8_USCALED_Z24_UNORM, PIPE_FORMAT_Z32_UNORM, 0 } + { PIPE_FORMAT_Z16_UNORM, DEFAULT_DEPTH_FORMATS } }, { { GL_DEPTH_COMPONENT24, 0 }, { PIPE_FORMAT_Z24X8_UNORM, PIPE_FORMAT_X8Z24_UNORM, - PIPE_FORMAT_Z24_UNORM_S8_USCALED, PIPE_FORMAT_S8_USCALED_Z24_UNORM, - PIPE_FORMAT_Z32_UNORM, 0 } + DEFAULT_DEPTH_FORMATS } }, { { GL_DEPTH_COMPONENT32, 0 }, - { PIPE_FORMAT_Z32_UNORM, 0 } + { PIPE_FORMAT_Z32_UNORM, DEFAULT_DEPTH_FORMATS } }, { { GL_DEPTH_COMPONENT, 0 }, - { PIPE_FORMAT_Z24X8_UNORM, PIPE_FORMAT_X8Z24_UNORM, - PIPE_FORMAT_Z32_UNORM, PIPE_FORMAT_Z16_UNORM, - PIPE_FORMAT_Z24_UNORM_S8_USCALED, PIPE_FORMAT_S8_USCALED_Z24_UNORM, 0 } + { DEFAULT_DEPTH_FORMATS } }, /* stencil formats */ diff --git a/mesalib/src/mesa/state_tracker/st_gen_mipmap.c b/mesalib/src/mesa/state_tracker/st_gen_mipmap.c index b34794f1b..b0911294a 100644 --- a/mesalib/src/mesa/state_tracker/st_gen_mipmap.c +++ b/mesalib/src/mesa/state_tracker/st_gen_mipmap.c @@ -91,9 +91,18 @@ st_render_mipmap(struct st_context *st, return FALSE; } + /* Disable conditional rendering. */ + if (st->render_condition) { + pipe->render_condition(pipe, NULL, 0); + } + util_gen_mipmap(st->gen_mipmap, psv, face, baseLevel, lastLevel, PIPE_TEX_FILTER_LINEAR); + if (st->render_condition) { + pipe->render_condition(pipe, st->render_condition, st->condition_mode); + } + return TRUE; } diff --git a/mesalib/src/mesa/swrast/s_blit.c b/mesalib/src/mesa/swrast/s_blit.c index 2dd11399f..3516a41bf 100644 --- a/mesalib/src/mesa/swrast/s_blit.c +++ b/mesalib/src/mesa/swrast/s_blit.c @@ -1,619 +1,616 @@ -/* - * Mesa 3-D graphics library - * Version: 6.5 - * - * Copyright (C) 1999-2006 Brian Paul All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - - -#include "main/glheader.h" -#include "main/condrender.h" -#include "main/image.h" -#include "main/macros.h" -#include "s_context.h" - - -#define ABS(X) ((X) < 0 ? -(X) : (X)) - - -/** - * Generate a row resampler function for GL_NEAREST mode. - */ -#define RESAMPLE(NAME, PIXELTYPE, SIZE) \ -static void \ -NAME(GLint srcWidth, GLint dstWidth, \ - const GLvoid *srcBuffer, GLvoid *dstBuffer, \ - GLboolean flip) \ -{ \ - const PIXELTYPE *src = (const PIXELTYPE *) srcBuffer;\ - PIXELTYPE *dst = (PIXELTYPE *) dstBuffer; \ - GLint dstCol; \ - \ - if (flip) { \ - for (dstCol = 0; dstCol < dstWidth; dstCol++) { \ - GLint srcCol = (dstCol * srcWidth) / dstWidth; \ - ASSERT(srcCol >= 0); \ - ASSERT(srcCol < srcWidth); \ - srcCol = srcWidth - 1 - srcCol; /* flip */ \ - if (SIZE == 1) { \ - dst[dstCol] = src[srcCol]; \ - } \ - else if (SIZE == 2) { \ - dst[dstCol*2+0] = src[srcCol*2+0]; \ - dst[dstCol*2+1] = src[srcCol*2+1]; \ - } \ - else if (SIZE == 4) { \ - dst[dstCol*4+0] = src[srcCol*4+0]; \ - dst[dstCol*4+1] = src[srcCol*4+1]; \ - dst[dstCol*4+2] = src[srcCol*4+2]; \ - dst[dstCol*4+3] = src[srcCol*4+3]; \ - } \ - } \ - } \ - else { \ - for (dstCol = 0; dstCol < dstWidth; dstCol++) { \ - GLint srcCol = (dstCol * srcWidth) / dstWidth; \ - ASSERT(srcCol >= 0); \ - ASSERT(srcCol < srcWidth); \ - if (SIZE == 1) { \ - dst[dstCol] = src[srcCol]; \ - } \ - else if (SIZE == 2) { \ - dst[dstCol*2+0] = src[srcCol*2+0]; \ - dst[dstCol*2+1] = src[srcCol*2+1]; \ - } \ - else if (SIZE == 4) { \ - dst[dstCol*4+0] = src[srcCol*4+0]; \ - dst[dstCol*4+1] = src[srcCol*4+1]; \ - dst[dstCol*4+2] = src[srcCol*4+2]; \ - dst[dstCol*4+3] = src[srcCol*4+3]; \ - } \ - } \ - } \ -} - -/** - * Resamplers for 1, 2, 4, 8 and 16-byte pixels. - */ -RESAMPLE(resample_row_1, GLubyte, 1) -RESAMPLE(resample_row_2, GLushort, 1) -RESAMPLE(resample_row_4, GLuint, 1) -RESAMPLE(resample_row_8, GLuint, 2) -RESAMPLE(resample_row_16, GLuint, 4) - - -/** - * Blit color, depth or stencil with GL_NEAREST filtering. - */ -static void -blit_nearest(struct gl_context *ctx, - GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1, - GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1, - GLbitfield buffer) -{ - struct gl_renderbuffer *readRb, *drawRb; - - const GLint srcWidth = ABS(srcX1 - srcX0); - const GLint dstWidth = ABS(dstX1 - dstX0); - const GLint srcHeight = ABS(srcY1 - srcY0); - const GLint dstHeight = ABS(dstY1 - dstY0); - - const GLint srcXpos = MIN2(srcX0, srcX1); - const GLint srcYpos = MIN2(srcY0, srcY1); - const GLint dstXpos = MIN2(dstX0, dstX1); - const GLint dstYpos = MIN2(dstY0, dstY1); - - const GLboolean invertX = (srcX1 < srcX0) ^ (dstX1 < dstX0); - const GLboolean invertY = (srcY1 < srcY0) ^ (dstY1 < dstY0); - - GLint dstRow; - - GLint comps, pixelSize; - GLvoid *srcBuffer, *dstBuffer; - GLint prevY = -1; - - typedef void (*resample_func)(GLint srcWidth, GLint dstWidth, - const GLvoid *srcBuffer, GLvoid *dstBuffer, - GLboolean flip); - resample_func resampleRow; - - switch (buffer) { - case GL_COLOR_BUFFER_BIT: - readRb = ctx->ReadBuffer->_ColorReadBuffer; - drawRb = ctx->DrawBuffer->_ColorDrawBuffers[0]; - comps = 4; - break; - case GL_DEPTH_BUFFER_BIT: - readRb = ctx->ReadBuffer->_DepthBuffer; - drawRb = ctx->DrawBuffer->_DepthBuffer; - comps = 1; - break; - case GL_STENCIL_BUFFER_BIT: - readRb = ctx->ReadBuffer->_StencilBuffer; - drawRb = ctx->DrawBuffer->_StencilBuffer; - comps = 1; - break; - default: - _mesa_problem(ctx, "unexpected buffer in blit_nearest()"); - return; - } - - switch (readRb->DataType) { - case GL_UNSIGNED_BYTE: - pixelSize = comps * sizeof(GLubyte); - break; - case GL_UNSIGNED_SHORT: - pixelSize = comps * sizeof(GLushort); - break; - case GL_UNSIGNED_INT: - pixelSize = comps * sizeof(GLuint); - break; - case GL_FLOAT: - pixelSize = comps * sizeof(GLfloat); - break; - default: - _mesa_problem(ctx, "unexpected buffer type (0x%x) in blit_nearest", - readRb->DataType); - return; - } - - /* choose row resampler */ - switch (pixelSize) { - case 1: - resampleRow = resample_row_1; - break; - case 2: - resampleRow = resample_row_2; - break; - case 4: - resampleRow = resample_row_4; - break; - case 8: - resampleRow = resample_row_8; - break; - case 16: - resampleRow = resample_row_16; - break; - default: - _mesa_problem(ctx, "unexpected pixel size (%d) in blit_nearest", - pixelSize); - return; - } - - /* allocate the src/dst row buffers */ - srcBuffer = malloc(pixelSize * srcWidth); - if (!srcBuffer) { - _mesa_error(ctx, GL_OUT_OF_MEMORY, "glBlitFrameBufferEXT"); - return; - } - dstBuffer = malloc(pixelSize * dstWidth); - if (!dstBuffer) { - free(srcBuffer); - _mesa_error(ctx, GL_OUT_OF_MEMORY, "glBlitFrameBufferEXT"); - return; - } - - for (dstRow = 0; dstRow < dstHeight; dstRow++) { - const GLint dstY = dstYpos + dstRow; - GLint srcRow = (dstRow * srcHeight) / dstHeight; - GLint srcY; - - ASSERT(srcRow >= 0); - ASSERT(srcRow < srcHeight); - - if (invertY) { - srcRow = srcHeight - 1 - srcRow; - } - - srcY = srcYpos + srcRow; - - /* get pixel row from source and resample to match dest width */ - if (prevY != srcY) { - readRb->GetRow(ctx, readRb, srcWidth, srcXpos, srcY, srcBuffer); - (*resampleRow)(srcWidth, dstWidth, srcBuffer, dstBuffer, invertX); - prevY = srcY; - } - - /* store pixel row in destination */ - drawRb->PutRow(ctx, drawRb, dstWidth, dstXpos, dstY, dstBuffer, NULL); - } - - free(srcBuffer); - free(dstBuffer); -} - - - -#define LERP(T, A, B) ( (A) + (T) * ((B) - (A)) ) - -static INLINE GLfloat -lerp_2d(GLfloat a, GLfloat b, - GLfloat v00, GLfloat v10, GLfloat v01, GLfloat v11) -{ - const GLfloat temp0 = LERP(a, v00, v10); - const GLfloat temp1 = LERP(a, v01, v11); - return LERP(b, temp0, temp1); -} - - -/** - * Bilinear interpolation of two source rows. - * GLubyte pixels. - */ -static void -resample_linear_row_ub(GLint srcWidth, GLint dstWidth, - const GLvoid *srcBuffer0, const GLvoid *srcBuffer1, - GLvoid *dstBuffer, GLboolean flip, GLfloat rowWeight) -{ - const GLubyte (*srcColor0)[4] = (const GLubyte (*)[4]) srcBuffer0; - const GLubyte (*srcColor1)[4] = (const GLubyte (*)[4]) srcBuffer1; - GLubyte (*dstColor)[4] = (GLubyte (*)[4]) dstBuffer; - const GLfloat dstWidthF = (GLfloat) dstWidth; - GLint dstCol; - - for (dstCol = 0; dstCol < dstWidth; dstCol++) { - const GLfloat srcCol = (dstCol * srcWidth) / dstWidthF; - GLint srcCol0 = IFLOOR(srcCol); - GLint srcCol1 = srcCol0 + 1; - GLfloat colWeight = srcCol - srcCol0; /* fractional part of srcCol */ - GLfloat red, green, blue, alpha; - - ASSERT(srcCol0 >= 0); - ASSERT(srcCol0 < srcWidth); - ASSERT(srcCol1 <= srcWidth); - - if (srcCol1 == srcWidth) { - /* last column fudge */ - srcCol1--; - colWeight = 0.0; - } - - if (flip) { - srcCol0 = srcWidth - 1 - srcCol0; - srcCol1 = srcWidth - 1 - srcCol1; - } - - red = lerp_2d(colWeight, rowWeight, - srcColor0[srcCol0][RCOMP], srcColor0[srcCol1][RCOMP], - srcColor1[srcCol0][RCOMP], srcColor1[srcCol1][RCOMP]); - green = lerp_2d(colWeight, rowWeight, - srcColor0[srcCol0][GCOMP], srcColor0[srcCol1][GCOMP], - srcColor1[srcCol0][GCOMP], srcColor1[srcCol1][GCOMP]); - blue = lerp_2d(colWeight, rowWeight, - srcColor0[srcCol0][BCOMP], srcColor0[srcCol1][BCOMP], - srcColor1[srcCol0][BCOMP], srcColor1[srcCol1][BCOMP]); - alpha = lerp_2d(colWeight, rowWeight, - srcColor0[srcCol0][ACOMP], srcColor0[srcCol1][ACOMP], - srcColor1[srcCol0][ACOMP], srcColor1[srcCol1][ACOMP]); - - dstColor[dstCol][RCOMP] = IFLOOR(red); - dstColor[dstCol][GCOMP] = IFLOOR(green); - dstColor[dstCol][BCOMP] = IFLOOR(blue); - dstColor[dstCol][ACOMP] = IFLOOR(alpha); - } -} - - - -/** - * Bilinear filtered blit (color only). - */ -static void -blit_linear(struct gl_context *ctx, - GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1, - GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1) -{ - struct gl_renderbuffer *readRb = ctx->ReadBuffer->_ColorReadBuffer; - struct gl_renderbuffer *drawRb = ctx->DrawBuffer->_ColorDrawBuffers[0]; - - const GLint srcWidth = ABS(srcX1 - srcX0); - const GLint dstWidth = ABS(dstX1 - dstX0); - const GLint srcHeight = ABS(srcY1 - srcY0); - const GLint dstHeight = ABS(dstY1 - dstY0); - const GLfloat dstHeightF = (GLfloat) dstHeight; - - const GLint srcXpos = MIN2(srcX0, srcX1); - const GLint srcYpos = MIN2(srcY0, srcY1); - const GLint dstXpos = MIN2(dstX0, dstX1); - const GLint dstYpos = MIN2(dstY0, dstY1); - - const GLboolean invertX = (srcX1 < srcX0) ^ (dstX1 < dstX0); - const GLboolean invertY = (srcY1 < srcY0) ^ (dstY1 < dstY0); - - GLint dstRow; - - GLint pixelSize; - GLvoid *srcBuffer0, *srcBuffer1; - GLint srcBufferY0 = -1, srcBufferY1 = -1; - GLvoid *dstBuffer; - - switch (readRb->DataType) { - case GL_UNSIGNED_BYTE: - pixelSize = 4 * sizeof(GLubyte); - break; - case GL_UNSIGNED_SHORT: - pixelSize = 4 * sizeof(GLushort); - break; - case GL_UNSIGNED_INT: - pixelSize = 4 * sizeof(GLuint); - break; - case GL_FLOAT: - pixelSize = 4 * sizeof(GLfloat); - break; - default: - _mesa_problem(ctx, "unexpected buffer type (0x%x) in blit_nearest", - readRb->DataType); - return; - } - - /* Allocate the src/dst row buffers. - * Keep two adjacent src rows around for bilinear sampling. - */ - srcBuffer0 = malloc(pixelSize * srcWidth); - if (!srcBuffer0) { - _mesa_error(ctx, GL_OUT_OF_MEMORY, "glBlitFrameBufferEXT"); - return; - } - srcBuffer1 = malloc(pixelSize * srcWidth); - if (!srcBuffer1) { - free(srcBuffer0); - _mesa_error(ctx, GL_OUT_OF_MEMORY, "glBlitFrameBufferEXT"); - return; - } - dstBuffer = malloc(pixelSize * dstWidth); - if (!dstBuffer) { - free(srcBuffer0); - free(srcBuffer1); - _mesa_error(ctx, GL_OUT_OF_MEMORY, "glBlitFrameBufferEXT"); - return; - } - - for (dstRow = 0; dstRow < dstHeight; dstRow++) { - const GLint dstY = dstYpos + dstRow; - const GLfloat srcRow = (dstRow * srcHeight) / dstHeightF; - GLint srcRow0 = IFLOOR(srcRow); - GLint srcRow1 = srcRow0 + 1; - GLfloat rowWeight = srcRow - srcRow0; /* fractional part of srcRow */ - - ASSERT(srcRow >= 0); - ASSERT(srcRow < srcHeight); - - if (srcRow1 == srcHeight) { - /* last row fudge */ - srcRow1 = srcRow0; - rowWeight = 0.0; - } - - if (invertY) { - srcRow0 = srcHeight - 1 - srcRow0; - srcRow1 = srcHeight - 1 - srcRow1; - } - - srcY0 = srcYpos + srcRow0; - srcY1 = srcYpos + srcRow1; - - /* get the two source rows */ - if (srcY0 == srcBufferY0 && srcY1 == srcBufferY1) { - /* use same source row buffers again */ - } - else if (srcY0 == srcBufferY1) { - /* move buffer1 into buffer0 by swapping pointers */ - GLvoid *tmp = srcBuffer0; - srcBuffer0 = srcBuffer1; - srcBuffer1 = tmp; - /* get y1 row */ - readRb->GetRow(ctx, readRb, srcWidth, srcXpos, srcY1, srcBuffer1); - srcBufferY0 = srcY0; - srcBufferY1 = srcY1; - } - else { - /* get both new rows */ - readRb->GetRow(ctx, readRb, srcWidth, srcXpos, srcY0, srcBuffer0); - readRb->GetRow(ctx, readRb, srcWidth, srcXpos, srcY1, srcBuffer1); - srcBufferY0 = srcY0; - srcBufferY1 = srcY1; - } - - if (readRb->DataType == GL_UNSIGNED_BYTE) { - resample_linear_row_ub(srcWidth, dstWidth, srcBuffer0, srcBuffer1, - dstBuffer, invertX, rowWeight); - } - else { - _mesa_problem(ctx, "Unsupported color channel type in sw blit"); - break; - } - - /* store pixel row in destination */ - drawRb->PutRow(ctx, drawRb, dstWidth, dstXpos, dstY, dstBuffer, NULL); - } - - free(srcBuffer0); - free(srcBuffer1); - free(dstBuffer); -} - - -/** - * Simple case: Blit color, depth or stencil with no scaling or flipping. - * XXX we could easily support vertical flipping here. - */ -static void -simple_blit(struct gl_context *ctx, - GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1, - GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1, - GLbitfield buffer) -{ - struct gl_renderbuffer *readRb, *drawRb; - const GLint width = srcX1 - srcX0; - const GLint height = srcY1 - srcY0; - GLint row, srcY, dstY, yStep; - GLint comps, bytesPerRow; - void *rowBuffer; - - /* only one buffer */ - ASSERT(_mesa_bitcount(buffer) == 1); - /* no flipping checks */ - ASSERT(srcX0 < srcX1); - ASSERT(srcY0 < srcY1); - ASSERT(dstX0 < dstX1); - ASSERT(dstY0 < dstY1); - /* size checks */ - ASSERT(srcX1 - srcX0 == dstX1 - dstX0); - ASSERT(srcY1 - srcY0 == dstY1 - dstY0); - - /* determine if copy should be bottom-to-top or top-to-bottom */ - if (srcY0 > dstY0) { - /* src above dst: copy bottom-to-top */ - yStep = 1; - srcY = srcY0; - dstY = dstY0; - } - else { - /* src below dst: copy top-to-bottom */ - yStep = -1; - srcY = srcY1 - 1; - dstY = dstY1 - 1; - } - - switch (buffer) { - case GL_COLOR_BUFFER_BIT: - readRb = ctx->ReadBuffer->_ColorReadBuffer; - drawRb = ctx->DrawBuffer->_ColorDrawBuffers[0]; - comps = 4; - break; - case GL_DEPTH_BUFFER_BIT: - readRb = ctx->ReadBuffer->_DepthBuffer; - drawRb = ctx->DrawBuffer->_DepthBuffer; - comps = 1; - break; - case GL_STENCIL_BUFFER_BIT: - readRb = ctx->ReadBuffer->_StencilBuffer; - drawRb = ctx->DrawBuffer->_StencilBuffer; - comps = 1; - break; - default: - _mesa_problem(ctx, "unexpected buffer in simple_blit()"); - return; - } - - ASSERT(readRb->DataType == drawRb->DataType); - - /* compute bytes per row */ - switch (readRb->DataType) { - case GL_UNSIGNED_BYTE: - bytesPerRow = comps * width * sizeof(GLubyte); - break; - case GL_UNSIGNED_SHORT: - bytesPerRow = comps * width * sizeof(GLushort); - break; - case GL_UNSIGNED_INT: - bytesPerRow = comps * width * sizeof(GLuint); - break; - case GL_FLOAT: - bytesPerRow = comps * width * sizeof(GLfloat); - break; - default: - _mesa_problem(ctx, "unexpected buffer type in simple_blit"); - return; - } - - /* allocate the row buffer */ - rowBuffer = malloc(bytesPerRow); - if (!rowBuffer) { - _mesa_error(ctx, GL_OUT_OF_MEMORY, "glBlitFrameBufferEXT"); - return; - } - - for (row = 0; row < height; row++) { - readRb->GetRow(ctx, readRb, width, srcX0, srcY, rowBuffer); - drawRb->PutRow(ctx, drawRb, width, dstX0, dstY, rowBuffer, NULL); - srcY += yStep; - dstY += yStep; - } - - free(rowBuffer); -} - - -/** - * Software fallback for glBlitFramebufferEXT(). - */ -void -_swrast_BlitFramebuffer(struct gl_context *ctx, - GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1, - GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1, - GLbitfield mask, GLenum filter) -{ - static const GLbitfield buffers[3] = { - GL_COLOR_BUFFER_BIT, - GL_DEPTH_BUFFER_BIT, - GL_STENCIL_BUFFER_BIT - }; - GLint i; - - if (!_mesa_check_conditional_render(ctx)) - return; /* don't clear */ - - if (!ctx->DrawBuffer->_NumColorDrawBuffers) - return; - - if (!_mesa_clip_blit(ctx, &srcX0, &srcY0, &srcX1, &srcY1, - &dstX0, &dstY0, &dstX1, &dstY1)) { - return; - } - - swrast_render_start(ctx); - - if (srcX1 - srcX0 == dstX1 - dstX0 && - srcY1 - srcY0 == dstY1 - dstY0 && - srcX0 < srcX1 && - srcY0 < srcY1 && - dstX0 < dstX1 && - dstY0 < dstY1) { - /* no stretching or flipping. - * filter doesn't matter. - */ - for (i = 0; i < 3; i++) { - if (mask & buffers[i]) { - simple_blit(ctx, srcX0, srcY0, srcX1, srcY1, - dstX0, dstY0, dstX1, dstY1, buffers[i]); - } - } - } - else { - if (filter == GL_NEAREST) { - for (i = 0; i < 3; i++) { - if (mask & buffers[i]) { - blit_nearest(ctx, srcX0, srcY0, srcX1, srcY1, - dstX0, dstY0, dstX1, dstY1, buffers[i]); - } - } - } - else { - ASSERT(filter == GL_LINEAR); - if (mask & GL_COLOR_BUFFER_BIT) { /* depth/stencil not allowed */ - blit_linear(ctx, srcX0, srcY0, srcX1, srcY1, - dstX0, dstY0, dstX1, dstY1); - } - } - } - - swrast_render_finish(ctx); -} +/* + * Mesa 3-D graphics library + * Version: 6.5 + * + * Copyright (C) 1999-2006 Brian Paul All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + + +#include "main/glheader.h" +#include "main/condrender.h" +#include "main/image.h" +#include "main/macros.h" +#include "s_context.h" + + +#define ABS(X) ((X) < 0 ? -(X) : (X)) + + +/** + * Generate a row resampler function for GL_NEAREST mode. + */ +#define RESAMPLE(NAME, PIXELTYPE, SIZE) \ +static void \ +NAME(GLint srcWidth, GLint dstWidth, \ + const GLvoid *srcBuffer, GLvoid *dstBuffer, \ + GLboolean flip) \ +{ \ + const PIXELTYPE *src = (const PIXELTYPE *) srcBuffer;\ + PIXELTYPE *dst = (PIXELTYPE *) dstBuffer; \ + GLint dstCol; \ + \ + if (flip) { \ + for (dstCol = 0; dstCol < dstWidth; dstCol++) { \ + GLint srcCol = (dstCol * srcWidth) / dstWidth; \ + ASSERT(srcCol >= 0); \ + ASSERT(srcCol < srcWidth); \ + srcCol = srcWidth - 1 - srcCol; /* flip */ \ + if (SIZE == 1) { \ + dst[dstCol] = src[srcCol]; \ + } \ + else if (SIZE == 2) { \ + dst[dstCol*2+0] = src[srcCol*2+0]; \ + dst[dstCol*2+1] = src[srcCol*2+1]; \ + } \ + else if (SIZE == 4) { \ + dst[dstCol*4+0] = src[srcCol*4+0]; \ + dst[dstCol*4+1] = src[srcCol*4+1]; \ + dst[dstCol*4+2] = src[srcCol*4+2]; \ + dst[dstCol*4+3] = src[srcCol*4+3]; \ + } \ + } \ + } \ + else { \ + for (dstCol = 0; dstCol < dstWidth; dstCol++) { \ + GLint srcCol = (dstCol * srcWidth) / dstWidth; \ + ASSERT(srcCol >= 0); \ + ASSERT(srcCol < srcWidth); \ + if (SIZE == 1) { \ + dst[dstCol] = src[srcCol]; \ + } \ + else if (SIZE == 2) { \ + dst[dstCol*2+0] = src[srcCol*2+0]; \ + dst[dstCol*2+1] = src[srcCol*2+1]; \ + } \ + else if (SIZE == 4) { \ + dst[dstCol*4+0] = src[srcCol*4+0]; \ + dst[dstCol*4+1] = src[srcCol*4+1]; \ + dst[dstCol*4+2] = src[srcCol*4+2]; \ + dst[dstCol*4+3] = src[srcCol*4+3]; \ + } \ + } \ + } \ +} + +/** + * Resamplers for 1, 2, 4, 8 and 16-byte pixels. + */ +RESAMPLE(resample_row_1, GLubyte, 1) +RESAMPLE(resample_row_2, GLushort, 1) +RESAMPLE(resample_row_4, GLuint, 1) +RESAMPLE(resample_row_8, GLuint, 2) +RESAMPLE(resample_row_16, GLuint, 4) + + +/** + * Blit color, depth or stencil with GL_NEAREST filtering. + */ +static void +blit_nearest(struct gl_context *ctx, + GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1, + GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1, + GLbitfield buffer) +{ + struct gl_renderbuffer *readRb, *drawRb; + + const GLint srcWidth = ABS(srcX1 - srcX0); + const GLint dstWidth = ABS(dstX1 - dstX0); + const GLint srcHeight = ABS(srcY1 - srcY0); + const GLint dstHeight = ABS(dstY1 - dstY0); + + const GLint srcXpos = MIN2(srcX0, srcX1); + const GLint srcYpos = MIN2(srcY0, srcY1); + const GLint dstXpos = MIN2(dstX0, dstX1); + const GLint dstYpos = MIN2(dstY0, dstY1); + + const GLboolean invertX = (srcX1 < srcX0) ^ (dstX1 < dstX0); + const GLboolean invertY = (srcY1 < srcY0) ^ (dstY1 < dstY0); + + GLint dstRow; + + GLint comps, pixelSize; + GLvoid *srcBuffer, *dstBuffer; + GLint prevY = -1; + + typedef void (*resample_func)(GLint srcWidth, GLint dstWidth, + const GLvoid *srcBuffer, GLvoid *dstBuffer, + GLboolean flip); + resample_func resampleRow; + + switch (buffer) { + case GL_COLOR_BUFFER_BIT: + readRb = ctx->ReadBuffer->_ColorReadBuffer; + drawRb = ctx->DrawBuffer->_ColorDrawBuffers[0]; + comps = 4; + break; + case GL_DEPTH_BUFFER_BIT: + readRb = ctx->ReadBuffer->_DepthBuffer; + drawRb = ctx->DrawBuffer->_DepthBuffer; + comps = 1; + break; + case GL_STENCIL_BUFFER_BIT: + readRb = ctx->ReadBuffer->_StencilBuffer; + drawRb = ctx->DrawBuffer->_StencilBuffer; + comps = 1; + break; + default: + _mesa_problem(ctx, "unexpected buffer in blit_nearest()"); + return; + } + + switch (readRb->DataType) { + case GL_UNSIGNED_BYTE: + pixelSize = comps * sizeof(GLubyte); + break; + case GL_UNSIGNED_SHORT: + pixelSize = comps * sizeof(GLushort); + break; + case GL_UNSIGNED_INT: + pixelSize = comps * sizeof(GLuint); + break; + case GL_FLOAT: + pixelSize = comps * sizeof(GLfloat); + break; + default: + _mesa_problem(ctx, "unexpected buffer type (0x%x) in blit_nearest", + readRb->DataType); + return; + } + + /* choose row resampler */ + switch (pixelSize) { + case 1: + resampleRow = resample_row_1; + break; + case 2: + resampleRow = resample_row_2; + break; + case 4: + resampleRow = resample_row_4; + break; + case 8: + resampleRow = resample_row_8; + break; + case 16: + resampleRow = resample_row_16; + break; + default: + _mesa_problem(ctx, "unexpected pixel size (%d) in blit_nearest", + pixelSize); + return; + } + + /* allocate the src/dst row buffers */ + srcBuffer = malloc(pixelSize * srcWidth); + if (!srcBuffer) { + _mesa_error(ctx, GL_OUT_OF_MEMORY, "glBlitFrameBufferEXT"); + return; + } + dstBuffer = malloc(pixelSize * dstWidth); + if (!dstBuffer) { + free(srcBuffer); + _mesa_error(ctx, GL_OUT_OF_MEMORY, "glBlitFrameBufferEXT"); + return; + } + + for (dstRow = 0; dstRow < dstHeight; dstRow++) { + const GLint dstY = dstYpos + dstRow; + GLint srcRow = (dstRow * srcHeight) / dstHeight; + GLint srcY; + + ASSERT(srcRow >= 0); + ASSERT(srcRow < srcHeight); + + if (invertY) { + srcRow = srcHeight - 1 - srcRow; + } + + srcY = srcYpos + srcRow; + + /* get pixel row from source and resample to match dest width */ + if (prevY != srcY) { + readRb->GetRow(ctx, readRb, srcWidth, srcXpos, srcY, srcBuffer); + (*resampleRow)(srcWidth, dstWidth, srcBuffer, dstBuffer, invertX); + prevY = srcY; + } + + /* store pixel row in destination */ + drawRb->PutRow(ctx, drawRb, dstWidth, dstXpos, dstY, dstBuffer, NULL); + } + + free(srcBuffer); + free(dstBuffer); +} + + + +#define LERP(T, A, B) ( (A) + (T) * ((B) - (A)) ) + +static INLINE GLfloat +lerp_2d(GLfloat a, GLfloat b, + GLfloat v00, GLfloat v10, GLfloat v01, GLfloat v11) +{ + const GLfloat temp0 = LERP(a, v00, v10); + const GLfloat temp1 = LERP(a, v01, v11); + return LERP(b, temp0, temp1); +} + + +/** + * Bilinear interpolation of two source rows. + * GLubyte pixels. + */ +static void +resample_linear_row_ub(GLint srcWidth, GLint dstWidth, + const GLvoid *srcBuffer0, const GLvoid *srcBuffer1, + GLvoid *dstBuffer, GLboolean flip, GLfloat rowWeight) +{ + const GLubyte (*srcColor0)[4] = (const GLubyte (*)[4]) srcBuffer0; + const GLubyte (*srcColor1)[4] = (const GLubyte (*)[4]) srcBuffer1; + GLubyte (*dstColor)[4] = (GLubyte (*)[4]) dstBuffer; + const GLfloat dstWidthF = (GLfloat) dstWidth; + GLint dstCol; + + for (dstCol = 0; dstCol < dstWidth; dstCol++) { + const GLfloat srcCol = (dstCol * srcWidth) / dstWidthF; + GLint srcCol0 = IFLOOR(srcCol); + GLint srcCol1 = srcCol0 + 1; + GLfloat colWeight = srcCol - srcCol0; /* fractional part of srcCol */ + GLfloat red, green, blue, alpha; + + ASSERT(srcCol0 >= 0); + ASSERT(srcCol0 < srcWidth); + ASSERT(srcCol1 <= srcWidth); + + if (srcCol1 == srcWidth) { + /* last column fudge */ + srcCol1--; + colWeight = 0.0; + } + + if (flip) { + srcCol0 = srcWidth - 1 - srcCol0; + srcCol1 = srcWidth - 1 - srcCol1; + } + + red = lerp_2d(colWeight, rowWeight, + srcColor0[srcCol0][RCOMP], srcColor0[srcCol1][RCOMP], + srcColor1[srcCol0][RCOMP], srcColor1[srcCol1][RCOMP]); + green = lerp_2d(colWeight, rowWeight, + srcColor0[srcCol0][GCOMP], srcColor0[srcCol1][GCOMP], + srcColor1[srcCol0][GCOMP], srcColor1[srcCol1][GCOMP]); + blue = lerp_2d(colWeight, rowWeight, + srcColor0[srcCol0][BCOMP], srcColor0[srcCol1][BCOMP], + srcColor1[srcCol0][BCOMP], srcColor1[srcCol1][BCOMP]); + alpha = lerp_2d(colWeight, rowWeight, + srcColor0[srcCol0][ACOMP], srcColor0[srcCol1][ACOMP], + srcColor1[srcCol0][ACOMP], srcColor1[srcCol1][ACOMP]); + + dstColor[dstCol][RCOMP] = IFLOOR(red); + dstColor[dstCol][GCOMP] = IFLOOR(green); + dstColor[dstCol][BCOMP] = IFLOOR(blue); + dstColor[dstCol][ACOMP] = IFLOOR(alpha); + } +} + + + +/** + * Bilinear filtered blit (color only). + */ +static void +blit_linear(struct gl_context *ctx, + GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1, + GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1) +{ + struct gl_renderbuffer *readRb = ctx->ReadBuffer->_ColorReadBuffer; + struct gl_renderbuffer *drawRb = ctx->DrawBuffer->_ColorDrawBuffers[0]; + + const GLint srcWidth = ABS(srcX1 - srcX0); + const GLint dstWidth = ABS(dstX1 - dstX0); + const GLint srcHeight = ABS(srcY1 - srcY0); + const GLint dstHeight = ABS(dstY1 - dstY0); + const GLfloat dstHeightF = (GLfloat) dstHeight; + + const GLint srcXpos = MIN2(srcX0, srcX1); + const GLint srcYpos = MIN2(srcY0, srcY1); + const GLint dstXpos = MIN2(dstX0, dstX1); + const GLint dstYpos = MIN2(dstY0, dstY1); + + const GLboolean invertX = (srcX1 < srcX0) ^ (dstX1 < dstX0); + const GLboolean invertY = (srcY1 < srcY0) ^ (dstY1 < dstY0); + + GLint dstRow; + + GLint pixelSize; + GLvoid *srcBuffer0, *srcBuffer1; + GLint srcBufferY0 = -1, srcBufferY1 = -1; + GLvoid *dstBuffer; + + switch (readRb->DataType) { + case GL_UNSIGNED_BYTE: + pixelSize = 4 * sizeof(GLubyte); + break; + case GL_UNSIGNED_SHORT: + pixelSize = 4 * sizeof(GLushort); + break; + case GL_UNSIGNED_INT: + pixelSize = 4 * sizeof(GLuint); + break; + case GL_FLOAT: + pixelSize = 4 * sizeof(GLfloat); + break; + default: + _mesa_problem(ctx, "unexpected buffer type (0x%x) in blit_nearest", + readRb->DataType); + return; + } + + /* Allocate the src/dst row buffers. + * Keep two adjacent src rows around for bilinear sampling. + */ + srcBuffer0 = malloc(pixelSize * srcWidth); + if (!srcBuffer0) { + _mesa_error(ctx, GL_OUT_OF_MEMORY, "glBlitFrameBufferEXT"); + return; + } + srcBuffer1 = malloc(pixelSize * srcWidth); + if (!srcBuffer1) { + free(srcBuffer0); + _mesa_error(ctx, GL_OUT_OF_MEMORY, "glBlitFrameBufferEXT"); + return; + } + dstBuffer = malloc(pixelSize * dstWidth); + if (!dstBuffer) { + free(srcBuffer0); + free(srcBuffer1); + _mesa_error(ctx, GL_OUT_OF_MEMORY, "glBlitFrameBufferEXT"); + return; + } + + for (dstRow = 0; dstRow < dstHeight; dstRow++) { + const GLint dstY = dstYpos + dstRow; + const GLfloat srcRow = (dstRow * srcHeight) / dstHeightF; + GLint srcRow0 = IFLOOR(srcRow); + GLint srcRow1 = srcRow0 + 1; + GLfloat rowWeight = srcRow - srcRow0; /* fractional part of srcRow */ + + ASSERT(srcRow >= 0); + ASSERT(srcRow < srcHeight); + + if (srcRow1 == srcHeight) { + /* last row fudge */ + srcRow1 = srcRow0; + rowWeight = 0.0; + } + + if (invertY) { + srcRow0 = srcHeight - 1 - srcRow0; + srcRow1 = srcHeight - 1 - srcRow1; + } + + srcY0 = srcYpos + srcRow0; + srcY1 = srcYpos + srcRow1; + + /* get the two source rows */ + if (srcY0 == srcBufferY0 && srcY1 == srcBufferY1) { + /* use same source row buffers again */ + } + else if (srcY0 == srcBufferY1) { + /* move buffer1 into buffer0 by swapping pointers */ + GLvoid *tmp = srcBuffer0; + srcBuffer0 = srcBuffer1; + srcBuffer1 = tmp; + /* get y1 row */ + readRb->GetRow(ctx, readRb, srcWidth, srcXpos, srcY1, srcBuffer1); + srcBufferY0 = srcY0; + srcBufferY1 = srcY1; + } + else { + /* get both new rows */ + readRb->GetRow(ctx, readRb, srcWidth, srcXpos, srcY0, srcBuffer0); + readRb->GetRow(ctx, readRb, srcWidth, srcXpos, srcY1, srcBuffer1); + srcBufferY0 = srcY0; + srcBufferY1 = srcY1; + } + + if (readRb->DataType == GL_UNSIGNED_BYTE) { + resample_linear_row_ub(srcWidth, dstWidth, srcBuffer0, srcBuffer1, + dstBuffer, invertX, rowWeight); + } + else { + _mesa_problem(ctx, "Unsupported color channel type in sw blit"); + break; + } + + /* store pixel row in destination */ + drawRb->PutRow(ctx, drawRb, dstWidth, dstXpos, dstY, dstBuffer, NULL); + } + + free(srcBuffer0); + free(srcBuffer1); + free(dstBuffer); +} + + +/** + * Simple case: Blit color, depth or stencil with no scaling or flipping. + * XXX we could easily support vertical flipping here. + */ +static void +simple_blit(struct gl_context *ctx, + GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1, + GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1, + GLbitfield buffer) +{ + struct gl_renderbuffer *readRb, *drawRb; + const GLint width = srcX1 - srcX0; + const GLint height = srcY1 - srcY0; + GLint row, srcY, dstY, yStep; + GLint comps, bytesPerRow; + void *rowBuffer; + + /* only one buffer */ + ASSERT(_mesa_bitcount(buffer) == 1); + /* no flipping checks */ + ASSERT(srcX0 < srcX1); + ASSERT(srcY0 < srcY1); + ASSERT(dstX0 < dstX1); + ASSERT(dstY0 < dstY1); + /* size checks */ + ASSERT(srcX1 - srcX0 == dstX1 - dstX0); + ASSERT(srcY1 - srcY0 == dstY1 - dstY0); + + /* determine if copy should be bottom-to-top or top-to-bottom */ + if (srcY0 > dstY0) { + /* src above dst: copy bottom-to-top */ + yStep = 1; + srcY = srcY0; + dstY = dstY0; + } + else { + /* src below dst: copy top-to-bottom */ + yStep = -1; + srcY = srcY1 - 1; + dstY = dstY1 - 1; + } + + switch (buffer) { + case GL_COLOR_BUFFER_BIT: + readRb = ctx->ReadBuffer->_ColorReadBuffer; + drawRb = ctx->DrawBuffer->_ColorDrawBuffers[0]; + comps = 4; + break; + case GL_DEPTH_BUFFER_BIT: + readRb = ctx->ReadBuffer->_DepthBuffer; + drawRb = ctx->DrawBuffer->_DepthBuffer; + comps = 1; + break; + case GL_STENCIL_BUFFER_BIT: + readRb = ctx->ReadBuffer->_StencilBuffer; + drawRb = ctx->DrawBuffer->_StencilBuffer; + comps = 1; + break; + default: + _mesa_problem(ctx, "unexpected buffer in simple_blit()"); + return; + } + + ASSERT(readRb->DataType == drawRb->DataType); + + /* compute bytes per row */ + switch (readRb->DataType) { + case GL_UNSIGNED_BYTE: + bytesPerRow = comps * width * sizeof(GLubyte); + break; + case GL_UNSIGNED_SHORT: + bytesPerRow = comps * width * sizeof(GLushort); + break; + case GL_UNSIGNED_INT: + bytesPerRow = comps * width * sizeof(GLuint); + break; + case GL_FLOAT: + bytesPerRow = comps * width * sizeof(GLfloat); + break; + default: + _mesa_problem(ctx, "unexpected buffer type in simple_blit"); + return; + } + + /* allocate the row buffer */ + rowBuffer = malloc(bytesPerRow); + if (!rowBuffer) { + _mesa_error(ctx, GL_OUT_OF_MEMORY, "glBlitFrameBufferEXT"); + return; + } + + for (row = 0; row < height; row++) { + readRb->GetRow(ctx, readRb, width, srcX0, srcY, rowBuffer); + drawRb->PutRow(ctx, drawRb, width, dstX0, dstY, rowBuffer, NULL); + srcY += yStep; + dstY += yStep; + } + + free(rowBuffer); +} + + +/** + * Software fallback for glBlitFramebufferEXT(). + */ +void +_swrast_BlitFramebuffer(struct gl_context *ctx, + GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1, + GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1, + GLbitfield mask, GLenum filter) +{ + static const GLbitfield buffers[3] = { + GL_COLOR_BUFFER_BIT, + GL_DEPTH_BUFFER_BIT, + GL_STENCIL_BUFFER_BIT + }; + GLint i; + + if (!ctx->DrawBuffer->_NumColorDrawBuffers) + return; + + if (!_mesa_clip_blit(ctx, &srcX0, &srcY0, &srcX1, &srcY1, + &dstX0, &dstY0, &dstX1, &dstY1)) { + return; + } + + swrast_render_start(ctx); + + if (srcX1 - srcX0 == dstX1 - dstX0 && + srcY1 - srcY0 == dstY1 - dstY0 && + srcX0 < srcX1 && + srcY0 < srcY1 && + dstX0 < dstX1 && + dstY0 < dstY1) { + /* no stretching or flipping. + * filter doesn't matter. + */ + for (i = 0; i < 3; i++) { + if (mask & buffers[i]) { + simple_blit(ctx, srcX0, srcY0, srcX1, srcY1, + dstX0, dstY0, dstX1, dstY1, buffers[i]); + } + } + } + else { + if (filter == GL_NEAREST) { + for (i = 0; i < 3; i++) { + if (mask & buffers[i]) { + blit_nearest(ctx, srcX0, srcY0, srcX1, srcY1, + dstX0, dstY0, dstX1, dstY1, buffers[i]); + } + } + } + else { + ASSERT(filter == GL_LINEAR); + if (mask & GL_COLOR_BUFFER_BIT) { /* depth/stencil not allowed */ + blit_linear(ctx, srcX0, srcY0, srcX1, srcY1, + dstX0, dstY0, dstX1, dstY1); + } + } + } + + swrast_render_finish(ctx); +} -- cgit v1.2.3