From 0402d388cb9803652c0f9a52ba7dcb6029fdd0b9 Mon Sep 17 00:00:00 2001 From: marha Date: Sat, 30 Apr 2011 15:25:48 +0000 Subject: Added extra needed files --- mesalib/src/gallium/auxiliary/util/u_blit.c | 790 ++++++++++++++++++++++++++++ 1 file changed, 790 insertions(+) create mode 100644 mesalib/src/gallium/auxiliary/util/u_blit.c (limited to 'mesalib/src/gallium/auxiliary/util/u_blit.c') diff --git a/mesalib/src/gallium/auxiliary/util/u_blit.c b/mesalib/src/gallium/auxiliary/util/u_blit.c new file mode 100644 index 000000000..e892a4a77 --- /dev/null +++ b/mesalib/src/gallium/auxiliary/util/u_blit.c @@ -0,0 +1,790 @@ +/************************************************************************** + * + * Copyright 2008 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. + * + **************************************************************************/ + +/** + * @file + * Copy/blit pixel rect between surfaces + * + * @author Brian Paul + */ + + +#include "pipe/p_context.h" +#include "util/u_debug.h" +#include "pipe/p_defines.h" +#include "util/u_inlines.h" +#include "pipe/p_shader_tokens.h" +#include "pipe/p_state.h" + +#include "util/u_blit.h" +#include "util/u_draw_quad.h" +#include "util/u_format.h" +#include "util/u_math.h" +#include "util/u_memory.h" +#include "util/u_sampler.h" +#include "util/u_simple_shaders.h" + +#include "cso_cache/cso_context.h" + + +struct blit_state +{ + struct pipe_context *pipe; + struct cso_context *cso; + + struct pipe_blend_state blend; + struct pipe_depth_stencil_alpha_state depthstencil_keep; + struct pipe_depth_stencil_alpha_state depthstencil_write; + struct pipe_rasterizer_state rasterizer; + struct pipe_sampler_state sampler; + struct pipe_viewport_state viewport; + struct pipe_clip_state clip; + struct pipe_vertex_element velem[2]; + enum pipe_texture_target internal_target; + + void *vs; + void *fs[TGSI_WRITEMASK_XYZW + 1]; + void *fs_depth; + + struct pipe_resource *vbuf; /**< quad vertices */ + unsigned vbuf_slot; + + float vertices[4][2][4]; /**< vertex/texcoords for quad */ +}; + + +/** + * Create state object for blit. + * Intended to be created once and re-used for many blit() calls. + */ +struct blit_state * +util_create_blit(struct pipe_context *pipe, struct cso_context *cso) +{ + struct blit_state *ctx; + uint i; + + ctx = CALLOC_STRUCT(blit_state); + if (!ctx) + return NULL; + + ctx->pipe = pipe; + ctx->cso = cso; + + /* disabled blending/masking */ + memset(&ctx->blend, 0, sizeof(ctx->blend)); + ctx->blend.rt[0].colormask = PIPE_MASK_RGBA; + + /* no-op depth/stencil/alpha */ + memset(&ctx->depthstencil_keep, 0, sizeof(ctx->depthstencil_keep)); + memset(&ctx->depthstencil_write, 0, sizeof(ctx->depthstencil_write)); + ctx->depthstencil_write.depth.enabled = 1; + ctx->depthstencil_write.depth.writemask = 1; + ctx->depthstencil_write.depth.func = PIPE_FUNC_ALWAYS; + + /* rasterizer */ + memset(&ctx->rasterizer, 0, sizeof(ctx->rasterizer)); + ctx->rasterizer.cull_face = PIPE_FACE_NONE; + ctx->rasterizer.gl_rasterization_rules = 1; + + /* samplers */ + memset(&ctx->sampler, 0, sizeof(ctx->sampler)); + ctx->sampler.wrap_s = PIPE_TEX_WRAP_CLAMP_TO_EDGE; + ctx->sampler.wrap_t = PIPE_TEX_WRAP_CLAMP_TO_EDGE; + ctx->sampler.wrap_r = PIPE_TEX_WRAP_CLAMP_TO_EDGE; + ctx->sampler.min_mip_filter = PIPE_TEX_MIPFILTER_NONE; + ctx->sampler.min_img_filter = 0; /* set later */ + ctx->sampler.mag_img_filter = 0; /* set later */ + + /* vertex elements state */ + memset(&ctx->velem[0], 0, sizeof(ctx->velem[0]) * 2); + for (i = 0; i < 2; i++) { + ctx->velem[i].src_offset = i * 4 * sizeof(float); + ctx->velem[i].instance_divisor = 0; + ctx->velem[i].vertex_buffer_index = 0; + ctx->velem[i].src_format = PIPE_FORMAT_R32G32B32A32_FLOAT; + } + + ctx->vbuf = NULL; + + /* init vertex data that doesn't change */ + for (i = 0; i < 4; i++) { + ctx->vertices[i][0][3] = 1.0f; /* w */ + ctx->vertices[i][1][2] = 0.0f; /* r */ + ctx->vertices[i][1][3] = 1.0f; /* q */ + } + + if(pipe->screen->get_param(pipe->screen, PIPE_CAP_NPOT_TEXTURES)) + ctx->internal_target = PIPE_TEXTURE_2D; + else + ctx->internal_target = PIPE_TEXTURE_RECT; + + return ctx; +} + + +/** + * Destroy a blit context + */ +void +util_destroy_blit(struct blit_state *ctx) +{ + struct pipe_context *pipe = ctx->pipe; + unsigned i; + + if (ctx->vs) + pipe->delete_vs_state(pipe, ctx->vs); + + for (i = 0; i < Elements(ctx->fs); i++) + if (ctx->fs[i]) + pipe->delete_fs_state(pipe, ctx->fs[i]); + + if (ctx->fs_depth) + pipe->delete_fs_state(pipe, ctx->fs_depth); + + pipe_resource_reference(&ctx->vbuf, NULL); + + FREE(ctx); +} + + +/** + * Helper function to set the fragment shaders. + */ +static INLINE void +set_fragment_shader(struct blit_state *ctx, uint writemask) +{ + if (!ctx->fs[writemask]) + ctx->fs[writemask] = + util_make_fragment_tex_shader_writemask(ctx->pipe, TGSI_TEXTURE_2D, + TGSI_INTERPOLATE_LINEAR, + writemask); + + cso_set_fragment_shader_handle(ctx->cso, ctx->fs[writemask]); +} + + +/** + * Helper function to set the depthwrite shader. + */ +static INLINE void +set_depth_fragment_shader(struct blit_state *ctx) +{ + if (!ctx->fs_depth) + ctx->fs_depth = + util_make_fragment_tex_shader_writedepth(ctx->pipe, TGSI_TEXTURE_2D, + TGSI_INTERPOLATE_LINEAR); + + cso_set_fragment_shader_handle(ctx->cso, ctx->fs_depth); +} + + +/** + * Helper function to set the vertex shader. + */ +static INLINE void +set_vertex_shader(struct blit_state *ctx) +{ + /* vertex shader - still required to provide the linkage between + * fragment shader input semantics and vertex_element/buffers. + */ + if (!ctx->vs) { + const uint semantic_names[] = { TGSI_SEMANTIC_POSITION, + TGSI_SEMANTIC_GENERIC }; + const uint semantic_indexes[] = { 0, 0 }; + ctx->vs = util_make_vertex_passthrough_shader(ctx->pipe, 2, + semantic_names, + semantic_indexes); + } + + cso_set_vertex_shader_handle(ctx->cso, ctx->vs); +} + + +/** + * Get offset of next free slot in vertex buffer for quad vertices. + */ +static unsigned +get_next_slot( struct blit_state *ctx ) +{ + const unsigned max_slots = 4096 / sizeof ctx->vertices; + + if (ctx->vbuf_slot >= max_slots) + util_blit_flush( ctx ); + + if (!ctx->vbuf) { + ctx->vbuf = pipe_buffer_create(ctx->pipe->screen, + PIPE_BIND_VERTEX_BUFFER, + PIPE_USAGE_STREAM, + max_slots * sizeof ctx->vertices); + } + + return ctx->vbuf_slot++ * sizeof ctx->vertices; +} + + + + +/** + * Setup vertex data for the textured quad we'll draw. + * Note: y=0=top + */ +static unsigned +setup_vertex_data_tex(struct blit_state *ctx, + float x0, float y0, float x1, float y1, + float s0, float t0, float s1, float t1, + float z) +{ + unsigned offset; + + ctx->vertices[0][0][0] = x0; + ctx->vertices[0][0][1] = y0; + ctx->vertices[0][0][2] = z; + ctx->vertices[0][1][0] = s0; /*s*/ + ctx->vertices[0][1][1] = t0; /*t*/ + + ctx->vertices[1][0][0] = x1; + ctx->vertices[1][0][1] = y0; + ctx->vertices[1][0][2] = z; + ctx->vertices[1][1][0] = s1; /*s*/ + ctx->vertices[1][1][1] = t0; /*t*/ + + ctx->vertices[2][0][0] = x1; + ctx->vertices[2][0][1] = y1; + ctx->vertices[2][0][2] = z; + ctx->vertices[2][1][0] = s1; + ctx->vertices[2][1][1] = t1; + + ctx->vertices[3][0][0] = x0; + ctx->vertices[3][0][1] = y1; + ctx->vertices[3][0][2] = z; + ctx->vertices[3][1][0] = s0; + ctx->vertices[3][1][1] = t1; + + offset = get_next_slot( ctx ); + + pipe_buffer_write_nooverlap(ctx->pipe, ctx->vbuf, + offset, sizeof(ctx->vertices), ctx->vertices); + + return offset; +} + + +/** + * \return TRUE if two regions overlap, FALSE otherwise + */ +static boolean +regions_overlap(int srcX0, int srcY0, + int srcX1, int srcY1, + int dstX0, int dstY0, + int dstX1, int dstY1) +{ + if (MAX2(srcX0, srcX1) < MIN2(dstX0, dstX1)) + return FALSE; /* src completely left of dst */ + + if (MAX2(dstX0, dstX1) < MIN2(srcX0, srcX1)) + return FALSE; /* dst completely left of src */ + + if (MAX2(srcY0, srcY1) < MIN2(dstY0, dstY1)) + return FALSE; /* src completely above dst */ + + if (MAX2(dstY0, dstY1) < MIN2(srcY0, srcY1)) + return FALSE; /* dst completely above src */ + + return TRUE; /* some overlap */ +} + + +/** + * Copy pixel block from src surface to dst surface. + * Overlapping regions are acceptable. + * Flipping and stretching are supported. + * \param filter one of PIPE_TEX_MIPFILTER_NEAREST/LINEAR + * \param writemask controls which channels in the dest surface are sourced + * from the src surface. Disabled channels are sourced + * from (0,0,0,1). + * XXX need some control over blitting stencil. + */ +void +util_blit_pixels_writemask(struct blit_state *ctx, + struct pipe_resource *src_tex, + unsigned src_level, + int srcX0, int srcY0, + int srcX1, int srcY1, + int srcZ0, + struct pipe_surface *dst, + int dstX0, int dstY0, + int dstX1, int dstY1, + float z, uint filter, + uint writemask) +{ + struct pipe_context *pipe = ctx->pipe; + struct pipe_screen *screen = pipe->screen; + enum pipe_format src_format, dst_format; + struct pipe_sampler_view *sampler_view = NULL; + struct pipe_sampler_view sv_templ; + struct pipe_surface *dst_surface; + struct pipe_framebuffer_state fb; + const int srcW = abs(srcX1 - srcX0); + const int srcH = abs(srcY1 - srcY0); + unsigned offset; + boolean overlap, dst_is_depth; + float s0, t0, s1, t1; + boolean normalized; + + assert(filter == PIPE_TEX_MIPFILTER_NEAREST || + filter == PIPE_TEX_MIPFILTER_LINEAR); + + assert(src_level <= src_tex->last_level); + + /* do the regions overlap? */ + overlap = src_tex == dst->texture && + dst->u.tex.level == src_level && + dst->u.tex.first_layer == srcZ0 && + regions_overlap(srcX0, srcY0, srcX1, srcY1, + dstX0, dstY0, dstX1, dstY1); + + src_format = util_format_linear(src_tex->format); + dst_format = util_format_linear(dst->format); + + /* + * Check for simple case: no format conversion, no flipping, no stretching, + * no overlapping. + * Filter mode should not matter since there's no stretching. + */ + if (dst_format == src_format && + srcX0 < srcX1 && + dstX0 < dstX1 && + srcY0 < srcY1 && + dstY0 < dstY1 && + (dstX1 - dstX0) == (srcX1 - srcX0) && + (dstY1 - dstY0) == (srcY1 - srcY0) && + !overlap) { + struct pipe_box src_box; + src_box.x = srcX0; + src_box.y = srcY0; + src_box.z = srcZ0; + src_box.width = srcW; + src_box.height = srcH; + src_box.depth = 1; + pipe->resource_copy_region(pipe, + dst->texture, dst->u.tex.level, + dstX0, dstY0, dst->u.tex.first_layer,/* dest */ + src_tex, src_level, + &src_box); + return; + } + + if (dst_format == dst->format) { + dst_surface = dst; + } else { + struct pipe_surface templ = *dst; + templ.format = dst_format; + dst_surface = pipe->create_surface(pipe, dst->texture, &templ); + } + + /* Create a temporary texture when src and dest alias or when src + * is anything other than a 2d texture. + * XXX should just use appropriate shader to access 1d / 3d slice / cube face, + * much like the u_blitter code does (should be pretty trivial). + * + * This can still be improved upon. + */ + if ((src_tex == dst_surface->texture && + dst_surface->u.tex.level == src_level && + dst_surface->u.tex.first_layer == srcZ0) || + (src_tex->target != PIPE_TEXTURE_2D && + src_tex->target != PIPE_TEXTURE_2D && + src_tex->target != PIPE_TEXTURE_RECT)) + { + struct pipe_resource texTemp; + struct pipe_resource *tex; + struct pipe_sampler_view sv_templ; + struct pipe_box src_box; + const int srcLeft = MIN2(srcX0, srcX1); + const int srcTop = MIN2(srcY0, srcY1); + + if (srcLeft != srcX0) { + /* left-right flip */ + int tmp = dstX0; + dstX0 = dstX1; + dstX1 = tmp; + } + + if (srcTop != srcY0) { + /* up-down flip */ + int tmp = dstY0; + dstY0 = dstY1; + dstY1 = tmp; + } + + /* create temp texture */ + memset(&texTemp, 0, sizeof(texTemp)); + texTemp.target = ctx->internal_target; + texTemp.format = src_format; + texTemp.last_level = 0; + texTemp.width0 = srcW; + texTemp.height0 = srcH; + texTemp.depth0 = 1; + texTemp.array_size = 1; + texTemp.bind = PIPE_BIND_SAMPLER_VIEW; + + tex = screen->resource_create(screen, &texTemp); + if (!tex) + return; + + src_box.x = srcLeft; + src_box.y = srcTop; + src_box.z = srcZ0; + src_box.width = srcW; + src_box.height = srcH; + src_box.depth = 1; + /* load temp texture */ + pipe->resource_copy_region(pipe, + tex, 0, 0, 0, 0, /* dest */ + src_tex, src_level, &src_box); + + normalized = tex->target != PIPE_TEXTURE_RECT; + if(normalized) { + s0 = 0.0f; + s1 = 1.0f; + t0 = 0.0f; + t1 = 1.0f; + } + else { + s0 = 0; + s1 = srcW; + t0 = 0; + t1 = srcH; + } + + u_sampler_view_default_template(&sv_templ, tex, tex->format); + sampler_view = pipe->create_sampler_view(pipe, tex, &sv_templ); + + if (!sampler_view) { + pipe_resource_reference(&tex, NULL); + return; + } + pipe_resource_reference(&tex, NULL); + } + else { + u_sampler_view_default_template(&sv_templ, src_tex, src_format); + sampler_view = pipe->create_sampler_view(pipe, src_tex, &sv_templ); + + if (!sampler_view) { + return; + } + + s0 = srcX0; + s1 = srcX1; + t0 = srcY0; + t1 = srcY1; + normalized = sampler_view->texture->target != PIPE_TEXTURE_RECT; + if(normalized) + { + s0 /= (float)(u_minify(sampler_view->texture->width0, src_level)); + s1 /= (float)(u_minify(sampler_view->texture->width0, src_level)); + t0 /= (float)(u_minify(sampler_view->texture->height0, src_level)); + t1 /= (float)(u_minify(sampler_view->texture->height0, src_level)); + } + } + + dst_is_depth = util_format_is_depth_or_stencil(dst_format); + + assert(screen->is_format_supported(screen, sampler_view->format, ctx->internal_target, + sampler_view->texture->nr_samples, + PIPE_BIND_SAMPLER_VIEW)); + assert(screen->is_format_supported(screen, dst_format, ctx->internal_target, + dst_surface->texture->nr_samples, + dst_is_depth ? PIPE_BIND_DEPTH_STENCIL : + PIPE_BIND_RENDER_TARGET)); + /* save state (restored below) */ + cso_save_blend(ctx->cso); + cso_save_depth_stencil_alpha(ctx->cso); + cso_save_rasterizer(ctx->cso); + cso_save_samplers(ctx->cso); + cso_save_fragment_sampler_views(ctx->cso); + cso_save_viewport(ctx->cso); + cso_save_framebuffer(ctx->cso); + cso_save_fragment_shader(ctx->cso); + cso_save_vertex_shader(ctx->cso); + cso_save_clip(ctx->cso); + cso_save_vertex_elements(ctx->cso); + cso_save_vertex_buffers(ctx->cso); + + /* set misc state we care about */ + cso_set_blend(ctx->cso, &ctx->blend); + cso_set_depth_stencil_alpha(ctx->cso, + dst_is_depth ? &ctx->depthstencil_write : + &ctx->depthstencil_keep); + cso_set_rasterizer(ctx->cso, &ctx->rasterizer); + cso_set_clip(ctx->cso, &ctx->clip); + cso_set_vertex_elements(ctx->cso, 2, ctx->velem); + + /* sampler */ + ctx->sampler.normalized_coords = normalized; + ctx->sampler.min_img_filter = filter; + ctx->sampler.mag_img_filter = filter; + ctx->sampler.min_lod = src_level; + ctx->sampler.max_lod = src_level; + cso_single_sampler(ctx->cso, 0, &ctx->sampler); + cso_single_sampler_done(ctx->cso); + + /* viewport */ + ctx->viewport.scale[0] = 0.5f * dst_surface->width; + ctx->viewport.scale[1] = 0.5f * dst_surface->height; + ctx->viewport.scale[2] = 0.5f; + ctx->viewport.scale[3] = 1.0f; + ctx->viewport.translate[0] = 0.5f * dst_surface->width; + ctx->viewport.translate[1] = 0.5f * dst_surface->height; + ctx->viewport.translate[2] = 0.5f; + ctx->viewport.translate[3] = 0.0f; + cso_set_viewport(ctx->cso, &ctx->viewport); + + /* texture */ + cso_set_fragment_sampler_views(ctx->cso, 1, &sampler_view); + + /* shaders */ + if (dst_is_depth) { + set_depth_fragment_shader(ctx); + } else { + set_fragment_shader(ctx, writemask); + } + set_vertex_shader(ctx); + + /* drawing dest */ + memset(&fb, 0, sizeof(fb)); + fb.width = dst_surface->width; + fb.height = dst_surface->height; + if (dst_is_depth) { + fb.zsbuf = dst_surface; + } else { + fb.nr_cbufs = 1; + fb.cbufs[0] = dst_surface; + } + cso_set_framebuffer(ctx->cso, &fb); + + /* draw quad */ + offset = setup_vertex_data_tex(ctx, + (float) dstX0 / dst_surface->width * 2.0f - 1.0f, + (float) dstY0 / dst_surface->height * 2.0f - 1.0f, + (float) dstX1 / dst_surface->width * 2.0f - 1.0f, + (float) dstY1 / dst_surface->height * 2.0f - 1.0f, + s0, t0, + s1, t1, + z); + + util_draw_vertex_buffer(ctx->pipe, ctx->cso, ctx->vbuf, offset, + PIPE_PRIM_TRIANGLE_FAN, + 4, /* verts */ + 2); /* attribs/vert */ + + /* restore state we changed */ + cso_restore_blend(ctx->cso); + cso_restore_depth_stencil_alpha(ctx->cso); + cso_restore_rasterizer(ctx->cso); + cso_restore_samplers(ctx->cso); + cso_restore_fragment_sampler_views(ctx->cso); + cso_restore_viewport(ctx->cso); + cso_restore_framebuffer(ctx->cso); + cso_restore_fragment_shader(ctx->cso); + cso_restore_vertex_shader(ctx->cso); + cso_restore_clip(ctx->cso); + cso_restore_vertex_elements(ctx->cso); + cso_restore_vertex_buffers(ctx->cso); + + pipe_sampler_view_reference(&sampler_view, NULL); + if (dst_surface != dst) + pipe_surface_reference(&dst_surface, NULL); +} + + +void +util_blit_pixels(struct blit_state *ctx, + struct pipe_resource *src_tex, + unsigned src_level, + int srcX0, int srcY0, + int srcX1, int srcY1, + int srcZ, + struct pipe_surface *dst, + int dstX0, int dstY0, + int dstX1, int dstY1, + float z, uint filter ) +{ + util_blit_pixels_writemask( ctx, src_tex, + src_level, + srcX0, srcY0, + srcX1, srcY1, + srcZ, + dst, + dstX0, dstY0, + dstX1, dstY1, + z, filter, + TGSI_WRITEMASK_XYZW ); +} + + +/* Release vertex buffer at end of frame to avoid synchronous + * rendering. + */ +void util_blit_flush( struct blit_state *ctx ) +{ + pipe_resource_reference(&ctx->vbuf, NULL); + ctx->vbuf_slot = 0; +} + + + +/** + * Copy pixel block from src texture to dst surface. + * + * XXX Should support selection of level. + * XXX need some control over blitting Z and/or stencil. + */ +void +util_blit_pixels_tex(struct blit_state *ctx, + struct pipe_sampler_view *src_sampler_view, + int srcX0, int srcY0, + int srcX1, int srcY1, + struct pipe_surface *dst, + int dstX0, int dstY0, + int dstX1, int dstY1, + float z, uint filter) +{ + boolean normalized = src_sampler_view->texture->target != PIPE_TEXTURE_RECT; + struct pipe_framebuffer_state fb; + float s0, t0, s1, t1; + unsigned offset; + struct pipe_resource *tex = src_sampler_view->texture; + + assert(filter == PIPE_TEX_MIPFILTER_NEAREST || + filter == PIPE_TEX_MIPFILTER_LINEAR); + + assert(tex); + assert(tex->width0 != 0); + assert(tex->height0 != 0); + + s0 = srcX0; + s1 = srcX1; + t0 = srcY0; + t1 = srcY1; + + if(normalized) + { + s0 /= (float)tex->width0; + s1 /= (float)tex->width0; + t0 /= (float)tex->height0; + t1 /= (float)tex->height0; + } + + assert(ctx->pipe->screen->is_format_supported(ctx->pipe->screen, dst->format, + PIPE_TEXTURE_2D, + dst->texture->nr_samples, + PIPE_BIND_RENDER_TARGET)); + + /* save state (restored below) */ + cso_save_blend(ctx->cso); + cso_save_depth_stencil_alpha(ctx->cso); + cso_save_rasterizer(ctx->cso); + cso_save_samplers(ctx->cso); + cso_save_fragment_sampler_views(ctx->cso); + cso_save_viewport(ctx->cso); + cso_save_framebuffer(ctx->cso); + cso_save_fragment_shader(ctx->cso); + cso_save_vertex_shader(ctx->cso); + cso_save_clip(ctx->cso); + cso_save_vertex_elements(ctx->cso); + cso_save_vertex_buffers(ctx->cso); + + /* set misc state we care about */ + cso_set_blend(ctx->cso, &ctx->blend); + cso_set_depth_stencil_alpha(ctx->cso, &ctx->depthstencil_keep); + cso_set_rasterizer(ctx->cso, &ctx->rasterizer); + cso_set_clip(ctx->cso, &ctx->clip); + cso_set_vertex_elements(ctx->cso, 2, ctx->velem); + + /* sampler */ + ctx->sampler.normalized_coords = normalized; + ctx->sampler.min_img_filter = filter; + ctx->sampler.mag_img_filter = filter; + cso_single_sampler(ctx->cso, 0, &ctx->sampler); + cso_single_sampler_done(ctx->cso); + + /* viewport */ + ctx->viewport.scale[0] = 0.5f * dst->width; + ctx->viewport.scale[1] = 0.5f * dst->height; + ctx->viewport.scale[2] = 0.5f; + ctx->viewport.scale[3] = 1.0f; + ctx->viewport.translate[0] = 0.5f * dst->width; + ctx->viewport.translate[1] = 0.5f * dst->height; + ctx->viewport.translate[2] = 0.5f; + ctx->viewport.translate[3] = 0.0f; + cso_set_viewport(ctx->cso, &ctx->viewport); + + /* texture */ + cso_set_fragment_sampler_views(ctx->cso, 1, &src_sampler_view); + + /* shaders */ + set_fragment_shader(ctx, TGSI_WRITEMASK_XYZW); + set_vertex_shader(ctx); + + /* drawing dest */ + memset(&fb, 0, sizeof(fb)); + fb.width = dst->width; + fb.height = dst->height; + fb.nr_cbufs = 1; + fb.cbufs[0] = dst; + cso_set_framebuffer(ctx->cso, &fb); + + /* draw quad */ + offset = setup_vertex_data_tex(ctx, + (float) dstX0 / dst->width * 2.0f - 1.0f, + (float) dstY0 / dst->height * 2.0f - 1.0f, + (float) dstX1 / dst->width * 2.0f - 1.0f, + (float) dstY1 / dst->height * 2.0f - 1.0f, + s0, t0, s1, t1, + z); + + util_draw_vertex_buffer(ctx->pipe, ctx->cso, + ctx->vbuf, offset, + PIPE_PRIM_TRIANGLE_FAN, + 4, /* verts */ + 2); /* attribs/vert */ + + /* restore state we changed */ + cso_restore_blend(ctx->cso); + cso_restore_depth_stencil_alpha(ctx->cso); + cso_restore_rasterizer(ctx->cso); + cso_restore_samplers(ctx->cso); + cso_restore_fragment_sampler_views(ctx->cso); + cso_restore_viewport(ctx->cso); + cso_restore_framebuffer(ctx->cso); + cso_restore_fragment_shader(ctx->cso); + cso_restore_vertex_shader(ctx->cso); + cso_restore_clip(ctx->cso); + cso_restore_vertex_elements(ctx->cso); + cso_restore_vertex_buffers(ctx->cso); +} -- cgit v1.2.3