diff options
Diffstat (limited to 'mesalib/src/mesa/drivers/common/meta_tex_subimage.c')
| -rw-r--r-- | mesalib/src/mesa/drivers/common/meta_tex_subimage.c | 361 |
1 files changed, 361 insertions, 0 deletions
diff --git a/mesalib/src/mesa/drivers/common/meta_tex_subimage.c b/mesalib/src/mesa/drivers/common/meta_tex_subimage.c new file mode 100644 index 000000000..68c8273fe --- /dev/null +++ b/mesalib/src/mesa/drivers/common/meta_tex_subimage.c @@ -0,0 +1,361 @@ +/* + * Mesa 3-D graphics library + * + * Copyright (C) 2015 Intel Corporation. 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 + * THE AUTHORS OR COPYRIGHT HOLDERS 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. + * + * Authors: + * Jason Ekstrand <jason.ekstrand@intel.com> + */ + +#include "bufferobj.h" +#include "buffers.h" +#include "fbobject.h" +#include "glformats.h" +#include "glheader.h" +#include "image.h" +#include "macros.h" +#include "meta.h" +#include "pbo.h" +#include "shaderapi.h" +#include "state.h" +#include "teximage.h" +#include "texobj.h" +#include "texstate.h" +#include "uniforms.h" +#include "varray.h" + +static struct gl_texture_image * +create_texture_for_pbo(struct gl_context *ctx, bool create_pbo, + GLenum pbo_target, int width, int height, int depth, + GLenum format, GLenum type, const void *pixels, + const struct gl_pixelstore_attrib *packing, + GLuint *tmp_pbo, GLuint *tmp_tex) +{ + uint32_t pbo_format; + GLenum internal_format; + unsigned row_stride; + struct gl_buffer_object *buffer_obj; + struct gl_texture_object *tex_obj; + struct gl_texture_image *tex_image; + bool read_only; + + if ((packing->ImageHeight != 0 && packing->ImageHeight != height) || + packing->SwapBytes || + packing->LsbFirst || + packing->Invert) + return NULL; + + pbo_format = _mesa_format_from_format_and_type(format, type); + if (_mesa_format_is_mesa_array_format(pbo_format)) + pbo_format = _mesa_format_from_array_format(pbo_format); + + if (!pbo_format || !ctx->TextureFormatSupported[pbo_format]) + return NULL; + + /* Account for SKIP_PIXELS, SKIP_ROWS, ALIGNMENT, and SKIP_IMAGES */ + pixels = _mesa_image_address3d(packing, pixels, + width, height, format, type, 0, 0, 0); + row_stride = _mesa_image_row_stride(packing, width, format, type); + + if (_mesa_is_bufferobj(packing->BufferObj)) { + *tmp_pbo = 0; + buffer_obj = packing->BufferObj; + } else { + assert(create_pbo); + + _mesa_GenBuffers(1, tmp_pbo); + + /* We are not doing this inside meta_begin/end. However, we know the + * client doesn't have the given target bound, so we can go ahead and + * squash it. We'll set it back when we're done. + */ + _mesa_BindBuffer(pbo_target, *tmp_pbo); + + _mesa_BufferData(pbo_target, row_stride * height, pixels, GL_STREAM_DRAW); + + buffer_obj = ctx->Unpack.BufferObj; + pixels = NULL; + + _mesa_BindBuffer(pbo_target, 0); + } + + _mesa_GenTextures(1, tmp_tex); + tex_obj = _mesa_lookup_texture(ctx, *tmp_tex); + tex_obj->Target = depth > 1 ? GL_TEXTURE_2D_ARRAY : GL_TEXTURE_2D; + tex_obj->Immutable = GL_TRUE; + _mesa_initialize_texture_object(ctx, tex_obj, *tmp_tex, GL_TEXTURE_2D); + + internal_format = _mesa_get_format_base_format(pbo_format); + + tex_image = _mesa_get_tex_image(ctx, tex_obj, tex_obj->Target, 0); + _mesa_init_teximage_fields(ctx, tex_image, width, height, depth, + 0, internal_format, pbo_format); + + read_only = pbo_target == GL_PIXEL_UNPACK_BUFFER; + if (!ctx->Driver.SetTextureStorageForBufferObject(ctx, tex_obj, + buffer_obj, + (intptr_t)pixels, + row_stride, + read_only)) { + _mesa_DeleteTextures(1, tmp_tex); + _mesa_DeleteBuffers(1, tmp_pbo); + return NULL; + } + + return tex_image; +} + +bool +_mesa_meta_pbo_TexSubImage(struct gl_context *ctx, GLuint dims, + struct gl_texture_image *tex_image, + int xoffset, int yoffset, int zoffset, + int width, int height, int depth, + GLenum format, GLenum type, const void *pixels, + bool allocate_storage, bool create_pbo, + const struct gl_pixelstore_attrib *packing) +{ + GLuint pbo = 0, pbo_tex = 0, fbos[2] = { 0, 0 }; + struct gl_texture_image *pbo_tex_image; + GLenum status; + bool success = false; + int z; + + /* XXX: This should probably be passed in from somewhere */ + const char *where = "_mesa_meta_pbo_TexSubImage"; + + if (!_mesa_is_bufferobj(packing->BufferObj) && !create_pbo) + return false; + + if (format == GL_DEPTH_COMPONENT || + format == GL_DEPTH_STENCIL || + format == GL_STENCIL_INDEX || + format == GL_COLOR_INDEX) + return false; + + if (ctx->_ImageTransferState) + return false; + + if (!_mesa_validate_pbo_access(dims, packing, width, height, depth, + format, type, INT_MAX, pixels)) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "%s(out of bounds PBO access)", where); + return true; + } + + if (_mesa_check_disallowed_mapping(packing->BufferObj)) { + /* buffer is mapped - that's an error */ + _mesa_error(ctx, GL_INVALID_OPERATION, "%s(PBO is mapped)", where); + return true; + } + + pbo_tex_image = create_texture_for_pbo(ctx, create_pbo, + GL_PIXEL_UNPACK_BUFFER, + width, height, depth, + format, type, pixels, packing, + &pbo, &pbo_tex); + if (!pbo_tex_image) + return false; + + if (allocate_storage) + ctx->Driver.AllocTextureImageBuffer(ctx, tex_image); + + /* Only stash the current FBO */ + _mesa_meta_begin(ctx, 0); + + _mesa_GenFramebuffers(2, fbos); + _mesa_BindFramebuffer(GL_READ_FRAMEBUFFER, fbos[0]); + _mesa_BindFramebuffer(GL_DRAW_FRAMEBUFFER, fbos[1]); + + if (tex_image->TexObject->Target == GL_TEXTURE_1D_ARRAY) { + assert(depth == 1); + depth = height; + height = 1; + } + + _mesa_meta_bind_fbo_image(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, + pbo_tex_image, 0); + /* If this passes on the first layer it should pass on the others */ + status = _mesa_CheckFramebufferStatus(GL_READ_FRAMEBUFFER); + if (status != GL_FRAMEBUFFER_COMPLETE) + goto fail; + + _mesa_meta_bind_fbo_image(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, + tex_image, zoffset); + /* If this passes on the first layer it should pass on the others */ + status = _mesa_CheckFramebufferStatus(GL_DRAW_FRAMEBUFFER); + if (status != GL_FRAMEBUFFER_COMPLETE) + goto fail; + + _mesa_update_state(ctx); + + if (_mesa_meta_BlitFramebuffer(ctx, ctx->ReadBuffer, ctx->DrawBuffer, + 0, 0, width, height, + xoffset, yoffset, + xoffset + width, yoffset + height, + GL_COLOR_BUFFER_BIT, GL_NEAREST)) + goto fail; + + for (z = 1; z < depth; z++) { + _mesa_meta_bind_fbo_image(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, + pbo_tex_image, z); + _mesa_meta_bind_fbo_image(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, + tex_image, zoffset + z); + + _mesa_update_state(ctx); + + _mesa_meta_BlitFramebuffer(ctx, ctx->ReadBuffer, ctx->DrawBuffer, + 0, 0, width, height, + xoffset, yoffset, + xoffset + width, yoffset + height, + GL_COLOR_BUFFER_BIT, GL_NEAREST); + } + + success = true; + +fail: + _mesa_DeleteFramebuffers(2, fbos); + _mesa_DeleteTextures(1, &pbo_tex); + _mesa_DeleteBuffers(1, &pbo); + + _mesa_meta_end(ctx); + + return success; +} + +bool +_mesa_meta_pbo_GetTexSubImage(struct gl_context *ctx, GLuint dims, + struct gl_texture_image *tex_image, + int xoffset, int yoffset, int zoffset, + int width, int height, int depth, + GLenum format, GLenum type, const void *pixels, + const struct gl_pixelstore_attrib *packing) +{ + GLuint pbo = 0, pbo_tex = 0, fbos[2] = { 0, 0 }; + struct gl_texture_image *pbo_tex_image; + GLenum status; + bool success = false; + int z; + + /* XXX: This should probably be passed in from somewhere */ + const char *where = "_mesa_meta_pbo_GetTexSubImage"; + + if (!_mesa_is_bufferobj(packing->BufferObj)) + return false; + + if (format == GL_DEPTH_COMPONENT || + format == GL_DEPTH_STENCIL || + format == GL_STENCIL_INDEX || + format == GL_COLOR_INDEX) + return false; + + if (ctx->_ImageTransferState) + return false; + + if (!_mesa_validate_pbo_access(dims, packing, width, height, depth, + format, type, INT_MAX, pixels)) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "%s(out of bounds PBO access)", where); + return true; + } + + if (_mesa_check_disallowed_mapping(packing->BufferObj)) { + /* buffer is mapped - that's an error */ + _mesa_error(ctx, GL_INVALID_OPERATION, "%s(PBO is mapped)", where); + return true; + } + + pbo_tex_image = create_texture_for_pbo(ctx, false, GL_PIXEL_PACK_BUFFER, + width, height, depth, + format, type, pixels, packing, + &pbo, &pbo_tex); + if (!pbo_tex_image) + return false; + + /* Only stash the current FBO */ + _mesa_meta_begin(ctx, 0); + + _mesa_GenFramebuffers(2, fbos); + + if (tex_image && tex_image->TexObject->Target == GL_TEXTURE_1D_ARRAY) { + assert(depth == 1); + depth = height; + height = 1; + } + + /* If we were given a texture, bind it to the read framebuffer. If not, + * we're doing a ReadPixels and we should just use whatever framebuffer + * the client has bound. + */ + if (tex_image) { + _mesa_BindFramebuffer(GL_READ_FRAMEBUFFER, fbos[0]); + _mesa_meta_bind_fbo_image(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, + tex_image, zoffset); + /* If this passes on the first layer it should pass on the others */ + status = _mesa_CheckFramebufferStatus(GL_READ_FRAMEBUFFER); + if (status != GL_FRAMEBUFFER_COMPLETE) + goto fail; + } else { + assert(depth == 1); + } + + _mesa_BindFramebuffer(GL_DRAW_FRAMEBUFFER, fbos[1]); + _mesa_meta_bind_fbo_image(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, + pbo_tex_image, 0); + /* If this passes on the first layer it should pass on the others */ + status = _mesa_CheckFramebufferStatus(GL_DRAW_FRAMEBUFFER); + if (status != GL_FRAMEBUFFER_COMPLETE) + goto fail; + + _mesa_update_state(ctx); + + if (_mesa_meta_BlitFramebuffer(ctx, ctx->ReadBuffer, ctx->DrawBuffer, + xoffset, yoffset, + xoffset + width, yoffset + height, + 0, 0, width, height, + GL_COLOR_BUFFER_BIT, GL_NEAREST)) + goto fail; + + for (z = 1; z < depth; z++) { + _mesa_meta_bind_fbo_image(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, + tex_image, zoffset + z); + _mesa_meta_bind_fbo_image(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, + pbo_tex_image, z); + + _mesa_update_state(ctx); + + _mesa_meta_BlitFramebuffer(ctx, ctx->ReadBuffer, ctx->DrawBuffer, + xoffset, yoffset, + xoffset + width, yoffset + height, + 0, 0, width, height, + GL_COLOR_BUFFER_BIT, GL_NEAREST); + } + + success = true; + +fail: + _mesa_DeleteFramebuffers(2, fbos); + _mesa_DeleteTextures(1, &pbo_tex); + _mesa_DeleteBuffers(1, &pbo); + + _mesa_meta_end(ctx); + + return success; +} |