/************************************************************************** * * Copyright 2007 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 VMWARE 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. * **************************************************************************/ #include #include "main/bufferobj.h" #include "main/enums.h" #include "main/fbobject.h" #include "main/formats.h" #include "main/format_utils.h" #include "main/glformats.h" #include "main/image.h" #include "main/imports.h" #include "main/macros.h" #include "main/mipmap.h" #include "main/pack.h" #include "main/pbo.h" #include "main/pixeltransfer.h" #include "main/texcompress.h" #include "main/texcompress_etc.h" #include "main/texgetimage.h" #include "main/teximage.h" #include "main/texobj.h" #include "main/texstore.h" #include "state_tracker/st_debug.h" #include "state_tracker/st_context.h" #include "state_tracker/st_cb_fbo.h" #include "state_tracker/st_cb_flush.h" #include "state_tracker/st_cb_texture.h" #include "state_tracker/st_cb_bufferobjects.h" #include "state_tracker/st_format.h" #include "state_tracker/st_texture.h" #include "state_tracker/st_gen_mipmap.h" #include "state_tracker/st_atom.h" #include "pipe/p_context.h" #include "pipe/p_defines.h" #include "util/u_inlines.h" #include "util/u_upload_mgr.h" #include "pipe/p_shader_tokens.h" #include "util/u_tile.h" #include "util/u_format.h" #include "util/u_surface.h" #include "util/u_sampler.h" #include "util/u_math.h" #include "util/u_box.h" #include "util/u_simple_shaders.h" #include "cso_cache/cso_context.h" #include "tgsi/tgsi_ureg.h" #define DBG if (0) printf enum pipe_texture_target gl_target_to_pipe(GLenum target) { switch (target) { case GL_TEXTURE_1D: case GL_PROXY_TEXTURE_1D: return PIPE_TEXTURE_1D; case GL_TEXTURE_2D: case GL_PROXY_TEXTURE_2D: case GL_TEXTURE_EXTERNAL_OES: case GL_TEXTURE_2D_MULTISAMPLE: case GL_PROXY_TEXTURE_2D_MULTISAMPLE: return PIPE_TEXTURE_2D; case GL_TEXTURE_RECTANGLE_NV: case GL_PROXY_TEXTURE_RECTANGLE_NV: return PIPE_TEXTURE_RECT; case GL_TEXTURE_3D: case GL_PROXY_TEXTURE_3D: return PIPE_TEXTURE_3D; case GL_TEXTURE_CUBE_MAP_ARB: case GL_PROXY_TEXTURE_CUBE_MAP_ARB: case GL_TEXTURE_CUBE_MAP_POSITIVE_X: case GL_TEXTURE_CUBE_MAP_NEGATIVE_X: case GL_TEXTURE_CUBE_MAP_POSITIVE_Y: case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y: case GL_TEXTURE_CUBE_MAP_POSITIVE_Z: case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z: return PIPE_TEXTURE_CUBE; case GL_TEXTURE_1D_ARRAY_EXT: case GL_PROXY_TEXTURE_1D_ARRAY_EXT: return PIPE_TEXTURE_1D_ARRAY; case GL_TEXTURE_2D_ARRAY_EXT: case GL_PROXY_TEXTURE_2D_ARRAY_EXT: case GL_TEXTURE_2D_MULTISAMPLE_ARRAY: case GL_PROXY_TEXTURE_2D_MULTISAMPLE_ARRAY: return PIPE_TEXTURE_2D_ARRAY; case GL_TEXTURE_BUFFER: return PIPE_BUFFER; case GL_TEXTURE_CUBE_MAP_ARRAY: case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY: return PIPE_TEXTURE_CUBE_ARRAY; default: assert(0); return 0; } } /** called via ctx->Driver.NewTextureImage() */ static struct gl_texture_image * st_NewTextureImage(struct gl_context * ctx) { DBG("%s\n", __func__); (void) ctx; return (struct gl_texture_image *) ST_CALLOC_STRUCT(st_texture_image); } /** called via ctx->Driver.DeleteTextureImage() */ static void st_DeleteTextureImage(struct gl_context * ctx, struct gl_texture_image *img) { /* nothing special (yet) for st_texture_image */ _mesa_delete_texture_image(ctx, img); } /** called via ctx->Driver.NewTextureObject() */ static struct gl_texture_object * st_NewTextureObject(struct gl_context * ctx, GLuint name, GLenum target) { struct st_texture_object *obj = ST_CALLOC_STRUCT(st_texture_object); DBG("%s\n", __func__); _mesa_initialize_texture_object(ctx, &obj->base, name, target); return &obj->base; } /** called via ctx->Driver.DeleteTextureObject() */ static void st_DeleteTextureObject(struct gl_context *ctx, struct gl_texture_object *texObj) { struct st_context *st = st_context(ctx); struct st_texture_object *stObj = st_texture_object(texObj); pipe_resource_reference(&stObj->pt, NULL); st_texture_release_all_sampler_views(st, stObj); st_texture_free_sampler_views(stObj); _mesa_delete_texture_object(ctx, texObj); } /** called via ctx->Driver.FreeTextureImageBuffer() */ static void st_FreeTextureImageBuffer(struct gl_context *ctx, struct gl_texture_image *texImage) { struct st_texture_image *stImage = st_texture_image(texImage); DBG("%s\n", __func__); if (stImage->pt) { pipe_resource_reference(&stImage->pt, NULL); } free(stImage->transfer); stImage->transfer = NULL; stImage->num_transfers = 0; } /** called via ctx->Driver.MapTextureImage() */ static void st_MapTextureImage(struct gl_context *ctx, struct gl_texture_image *texImage, GLuint slice, GLuint x, GLuint y, GLuint w, GLuint h, GLbitfield mode, GLubyte **mapOut, GLint *rowStrideOut) { struct st_context *st = st_context(ctx); struct st_texture_image *stImage = st_texture_image(texImage); unsigned pipeMode; GLubyte *map; struct pipe_transfer *transfer; pipeMode = 0x0; if (mode & GL_MAP_READ_BIT) pipeMode |= PIPE_TRANSFER_READ; if (mode & GL_MAP_WRITE_BIT) pipeMode |= PIPE_TRANSFER_WRITE; if (mode & GL_MAP_INVALIDATE_RANGE_BIT) pipeMode |= PIPE_TRANSFER_DISCARD_RANGE; map = st_texture_image_map(st, stImage, pipeMode, x, y, slice, w, h, 1, &transfer); if (map) { if ((_mesa_is_format_etc2(texImage->TexFormat) && !st->has_etc2) || (texImage->TexFormat == MESA_FORMAT_ETC1_RGB8 && !st->has_etc1)) { /* ETC isn't supported by gallium and it's represented * by uncompressed formats. Only write transfers with precompressed * data are supported by ES3, which makes this really simple. * * Just create a temporary storage where the ETC texture will * be stored. It will be decompressed in the Unmap function. */ unsigned z = transfer->box.z; struct st_texture_image_transfer *itransfer = &stImage->transfer[z]; itransfer->temp_data = malloc(_mesa_format_image_size(texImage->TexFormat, w, h, 1)); itransfer->temp_stride = _mesa_format_row_stride(texImage->TexFormat, w); itransfer->map = map; *mapOut = itransfer->temp_data; *rowStrideOut = itransfer->temp_stride; } else { /* supported mapping */ *mapOut = map; *rowStrideOut = transfer->stride; } } else { *mapOut = NULL; *rowStrideOut = 0; } } /** called via ctx->Driver.UnmapTextureImage() */ static void st_UnmapTextureImage(struct gl_context *ctx, struct gl_texture_image *texImage, GLuint slice) { struct st_context *st = st_context(ctx); struct st_texture_image *stImage = st_texture_image(texImage); if ((_mesa_is_format_etc2(texImage->TexFormat) && !st->has_etc2) || (texImage->TexFormat == MESA_FORMAT_ETC1_RGB8 && !st->has_etc1)) { /* Decompress the ETC texture to the mapped one. */ unsigned z = slice + stImage->base.Face; struct st_texture_image_transfer *itransfer = &stImage->transfer[z]; struct pipe_transfer *transfer = itransfer->transfer; assert(z == transfer->box.z); if (texImage->TexFormat == MESA_FORMAT_ETC1_RGB8) { _mesa_etc1_unpack_rgba8888(itransfer->map, transfer->stride, itransfer->temp_data, itransfer->temp_stride, transfer->box.width, transfer->box.height); } else { _mesa_unpack_etc2_format(itransfer->map, transfer->stride, itransfer->temp_data, itransfer->temp_stride, transfer->box.width, transfer->box.height, texImage->TexFormat); } free(itransfer->temp_data); itransfer->temp_data = NULL; itransfer->temp_stride = 0; itransfer->map = 0; } st_texture_image_unmap(st, stImage, slice); } /** * Return default texture resource binding bitmask for the given format. */ static GLuint default_bindings(struct st_context *st, enum pipe_format format) { struct pipe_screen *screen = st->pipe->screen; const unsigned target = PIPE_TEXTURE_2D; unsigned bindings; if (util_format_is_depth_or_stencil(format)) bindings = PIPE_BIND_SAMPLER_VIEW | PIPE_BIND_DEPTH_STENCIL; else bindings = PIPE_BIND_SAMPLER_VIEW | PIPE_BIND_RENDER_TARGET; if (screen->is_format_supported(screen, format, target, 0, bindings)) return bindings; else { /* Try non-sRGB. */ format = util_format_linear(format); if (screen->is_format_supported(screen, format, target, 0, bindings)) return bindings; else return PIPE_BIND_SAMPLER_VIEW; } } /** * Given the size of a mipmap image, try to compute the size of the level=0 * mipmap image. * * Note that this isn't always accurate for odd-sized, non-POW textures. * For example, if level=1 and width=40 then the level=0 width may be 80 or 81. * * \return GL_TRUE for success, GL_FALSE for failure */ static GLboolean guess_base_level_size(GLenum target, GLuint width, GLuint height, GLuint depth, GLuint level, GLuint *width0, GLuint *height0, GLuint *depth0) { assert(width >= 1); assert(height >= 1); assert(depth >= 1); if (level > 0) { /* Guess the size of the base level. * Depending on the image's size, we can't always make a guess here. */ switch (target) { case GL_TEXTURE_1D: case GL_TEXTURE_1D_ARRAY: width <<= level; break; case GL_TEXTURE_2D: case GL_TEXTURE_2D_ARRAY: /* We can't make a good guess here, because the base level dimensions * can be non-square. */ if (width == 1 || height == 1) { return GL_FALSE; } width <<= level; height <<= level; break; case GL_TEXTURE_CUBE_MAP: case GL_TEXTURE_CUBE_MAP_ARRAY: width <<= level; height <<= level; break; case GL_TEXTURE_3D: /* We can't make a good guess here, because the base level dimensions * can be non-cube. */ if (width == 1 || height == 1 || depth == 1) { return GL_FALSE; } width <<= level; height <<= level; depth <<= level; break; case GL_TEXTURE_RECTANGLE: break; default: assert(0); } } *width0 = width; *height0 = height; *depth0 = depth; return GL_TRUE; } /** * Try to determine whether we should allocate memory for a full texture * mipmap. The problem is when we get a glTexImage(level=0) call, we * can't immediately know if other mipmap levels are coming next. Here * we try to guess whether to allocate memory for a mipmap or just the * 0th level. * * If we guess incorrectly here we'll later reallocate the right amount of * memory either in st_AllocTextureImageBuffer() or st_finalize_texture(). * * \param stObj the texture object we're going to allocate memory for. * \param stImage describes the incoming image which we need to store. */ static boolean allocate_full_mipmap(const struct st_texture_object *stObj, const struct st_texture_image *stImage) { switch (stObj->base.Target) { case GL_TEXTURE_RECTANGLE_NV: case GL_TEXTURE_BUFFER: case GL_TEXTURE_EXTERNAL_OES: case GL_TEXTURE_2D_MULTISAMPLE: case GL_TEXTURE_2D_MULTISAMPLE_ARRAY: /* these texture types cannot be mipmapped */ return FALSE; } if (stImage->base.Level > 0 || stObj->base.GenerateMipmap) return TRUE; if (stImage->base._BaseFormat == GL_DEPTH_COMPONENT || stImage->base._BaseFormat == GL_DEPTH_STENCIL_EXT) /* depth/stencil textures are seldom mipmapped */ return FALSE; if (stObj->base.BaseLevel == 0 && stObj->base.MaxLevel == 0) return FALSE; if (stObj->base.Sampler.MinFilter == GL_NEAREST || stObj->base.Sampler.MinFilter == GL_LINEAR) /* not a mipmap minification filter */ return FALSE; if (stObj->base.Target == GL_TEXTURE_3D) /* 3D textures are seldom mipmapped */ return FALSE; return TRUE; } /** * Try to allocate a pipe_resource object for the given st_texture_object. * * We use the given st_texture_image as a clue to determine the size of the * mipmap image at level=0. * * \return GL_TRUE for success, GL_FALSE if out of memory. */ static GLboolean guess_and_alloc_texture(struct st_context *st, struct st_texture_object *stObj, const struct st_texture_image *stImage) { GLuint lastLevel, width, height, depth; GLuint bindings; GLuint ptWidth, ptHeight, ptDepth, ptLayers; enum pipe_format fmt; DBG("%s\n", __func__); assert(!stObj->pt); if (!guess_base_level_size(stObj->base.Target, stImage->base.Width2, stImage->base.Height2, stImage->base.Depth2, stImage->base.Level, &width, &height, &depth)) { /* we can't determine the image size at level=0 */ stObj->width0 = stObj->height0 = stObj->depth0 = 0; /* this is not an out of memory error */ return GL_TRUE; } /* At this point, (width x height x depth) is the expected size of * the level=0 mipmap image. */ /* Guess a reasonable value for lastLevel. With OpenGL we have no * idea how many mipmap levels will be in a texture until we start * to render with it. Make an educated guess here but be prepared * to re-allocating a texture buffer with space for more (or fewer) * mipmap levels later. */ if (allocate_full_mipmap(stObj, stImage)) { /* alloc space for a full mipmap */ lastLevel = _mesa_get_tex_max_num_levels(stObj->base.Target, width, height, depth) - 1; } else { /* only alloc space for a single mipmap level */ lastLevel = 0; } /* Save the level=0 dimensions */ stObj->width0 = width; stObj->height0 = height; stObj->depth0 = depth; fmt = st_mesa_format_to_pipe_format(st, stImage->base.TexFormat); bindings = default_bindings(st, fmt); st_gl_texture_dims_to_pipe_dims(stObj->base.Target, width, height, depth, &ptWidth, &ptHeight, &ptDepth, &ptLayers); stObj->pt = st_texture_create(st, gl_target_to_pipe(stObj->base.Target), fmt, lastLevel, ptWidth, ptHeight, ptDepth, ptLayers, 0, bindings); stObj->lastLevel = lastLevel; DBG("%s returning %d\n", __func__, (stObj->pt != NULL)); return stObj->pt != NULL; } /** * Called via ctx->Driver.AllocTextureImageBuffer(). * If the texture object/buffer already has space for the indicated image, * we're done. Otherwise, allocate memory for the new texture image. */ static GLboolean st_AllocTextureImageBuffer(struct gl_context *ctx, struct gl_texture_image *texImage) { struct st_context *st = st_context(ctx); struct st_texture_image *stImage = st_texture_image(texImage); struct st_texture_object *stObj = st_texture_object(texImage->TexObject); const GLuint level = texImage->Level; GLuint width = texImage->Width; GLuint height = texImage->Height; GLuint depth = texImage->Depth; DBG("%s\n", __func__); assert(!stImage->pt); /* xxx this might be wrong */ /* Look if the parent texture object has space for this image */ if (stObj->pt && level <= stObj->pt->last_level && st_texture_match_image(st, stObj->pt, texImage)) { /* this image will fit in the existing texture object's memory */ pipe_resource_reference(&stImage->pt, stObj->pt); return GL_TRUE; } /* The parent texture object does not have space for this image */ pipe_resource_reference(&stObj->pt, NULL); st_texture_release_all_sampler_views(st, stObj); if (!guess_and_alloc_texture(st, stObj, stImage)) { /* Probably out of memory. * Try flushing any pending rendering, then retry. */ st_finish(st); if (!guess_and_alloc_texture(st, stObj, stImage)) { _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage"); return GL_FALSE; } } if (stObj->pt && st_texture_match_image(st, stObj->pt, texImage)) { /* The image will live in the object's mipmap memory */ pipe_resource_reference(&stImage->pt, stObj->pt); assert(stImage->pt); return GL_TRUE; } else { /* Create a new, temporary texture/resource/buffer to hold this * one texture image. Note that when we later access this image * (either for mapping or copying) we'll want to always specify * mipmap level=0, even if the image represents some other mipmap * level. */ enum pipe_format format = st_mesa_format_to_pipe_format(st, texImage->TexFormat); GLuint bindings = default_bindings(st, format); GLuint ptWidth, ptHeight, ptDepth, ptLayers; st_gl_texture_dims_to_pipe_dims(stObj->base.Target, width, height, depth, &ptWidth, &ptHeight, &ptDepth, &ptLayers); stImage->pt = st_texture_create(st, gl_target_to_pipe(stObj->base.Target), format, 0, /* lastLevel */ ptWidth, ptHeight, ptDepth, ptLayers, 0, bindings); return stImage->pt != NULL; } } /** * Preparation prior to glTexImage. Basically check the 'surface_based' * field and switch to a "normal" tex image if necessary. */ static void prep_teximage(struct gl_context *ctx, struct gl_texture_image *texImage, GLenum format, GLenum type) { struct gl_texture_object *texObj = texImage->TexObject; struct st_texture_object *stObj = st_texture_object(texObj); /* switch to "normal" */ if (stObj->surface_based) { const GLenum target = texObj->Target; const GLuint level = texImage->Level; mesa_format texFormat; _mesa_clear_texture_object(ctx, texObj); pipe_resource_reference(&stObj->pt, NULL); /* oops, need to init this image again */ texFormat = _mesa_choose_texture_format(ctx, texObj, target, level, texImage->InternalFormat, format, type); _mesa_init_teximage_fields(ctx, texImage, texImage->Width, texImage->Height, texImage->Depth, texImage->Border, texImage->InternalFormat, texFormat); stObj->surface_based = GL_FALSE; } } /** * Return a writemask for the gallium blit. The parameters can be base * formats or "format" from glDrawPixels/glTexImage/glGetTexImage. */ unsigned st_get_blit_mask(GLenum srcFormat, GLenum dstFormat) { switch (dstFormat) { case GL_DEPTH_STENCIL: switch (srcFormat) { case GL_DEPTH_STENCIL: return PIPE_MASK_ZS; case GL_DEPTH_COMPONENT: return PIPE_MASK_Z; case GL_STENCIL_INDEX: return PIPE_MASK_S; default: assert(0); return 0; } case GL_DEPTH_COMPONENT: switch (srcFormat) { case GL_DEPTH_STENCIL: case GL_DEPTH_COMPONENT: return PIPE_MASK_Z; default: assert(0); return 0; } case GL_STENCIL_INDEX: switch (srcFormat) { case GL_STENCIL_INDEX: return PIPE_MASK_S; default: assert(0); return 0; } default: return PIPE_MASK_RGBA; } } void st_init_pbo_upload(struct st_context *st) { struct pipe_context *pipe = st->pipe; struct pipe_screen *screen = pipe->screen; st->pbo_upload.enabled = screen->get_param(screen, PIPE_CAP_TEXTURE_BUFFER_OBJECTS) && screen->get_param(screen, PIPE_CAP_TEXTURE_BUFFER_OFFSET_ALIGNMENT) >= 1 && screen->get_shader_param(screen, PIPE_SHADER_FRAGMENT, PIPE_SHADER_CAP_INTEGERS); if (!st->pbo_upload.enabled) return; st->pbo_upload.rgba_only = screen->get_param(screen, PIPE_CAP_BUFFER_SAMPLER_VIEW_RGBA_ONLY); if (screen->get_param(screen, PIPE_CAP_TGSI_INSTANCEID)) { if (screen->get_param(screen, PIPE_CAP_TGSI_VS_LAYER_VIEWPORT)) { st->pbo_upload.upload_layers = true; } else if (screen->get_param(screen, PIPE_CAP_MAX_GEOMETRY_OUTPUT_VERTICES) >= 3) { st->pbo_upload.upload_layers = true; st->pbo_upload.use_gs = true; } } /* Blend state */ memset(&st->pbo_upload.blend, 0, sizeof(struct pipe_blend_state)); st->pbo_upload.blend.rt[0].colormask = PIPE_MASK_RGBA; /* Rasterizer state */ memset(&st->pbo_upload.raster, 0, sizeof(struct pipe_rasterizer_state)); st->pbo_upload.raster.half_pixel_center = 1; } void st_destroy_pbo_upload(struct st_context *st) { if (st->pbo_upload.fs) { cso_delete_fragment_shader(st->cso_context, st->pbo_upload.fs); st->pbo_upload.fs = NULL; } if (st->pbo_upload.gs) { cso_delete_geometry_shader(st->cso_context, st->pbo_upload.gs); st->pbo_upload.gs = NULL; } if (st->pbo_upload.vs) { cso_delete_vertex_shader(st->cso_context, st->pbo_upload.vs); st->pbo_upload.vs = NULL; } } /** * Converts format to a format with the same components, types * and sizes, but with the components in RGBA order. */ static enum pipe_format unswizzle_format(enum pipe_format format) { switch (format) { case PIPE_FORMAT_B8G8R8A8_UNORM: case PIPE_FORMAT_A8R8G8B8_UNORM: case PIPE_FORMAT_A8B8G8R8_UNORM: return PIPE_FORMAT_R8G8B8A8_UNORM; case PIPE_FORMAT_B10G10R10A2_UNORM: return PIPE_FORMAT_R10G10B10A2_UNORM; case PIPE_FORMAT_B10G10R10A2_SNORM: return PIPE_FORMAT_R10G10B10A2_SNORM; case PIPE_FORMAT_B10G10R10A2_UINT: return PIPE_FORMAT_R10G10B10A2_UINT; default: return format; } } /** * Converts PIPE_FORMAT_A* to PIPE_FORMAT_R*. */ static enum pipe_format alpha_to_red(enum pipe_format format) { switch (format) { case PIPE_FORMAT_A8_UNORM: return PIPE_FORMAT_R8_UNORM; case PIPE_FORMAT_A8_SNORM: return PIPE_FORMAT_R8_SNORM; case PIPE_FORMAT_A8_UINT: return PIPE_FORMAT_R8_UINT; case PIPE_FORMAT_A8_SINT: return PIPE_FORMAT_R8_SINT; case PIPE_FORMAT_A16_UNORM: return PIPE_FORMAT_R16_UNORM; case PIPE_FORMAT_A16_SNORM: return PIPE_FORMAT_R16_SNORM; case PIPE_FORMAT_A16_UINT: return PIPE_FORMAT_R16_UINT; case PIPE_FORMAT_A16_SINT: return PIPE_FORMAT_R16_SINT; case PIPE_FORMAT_A16_FLOAT: return PIPE_FORMAT_R16_FLOAT; case PIPE_FORMAT_A32_UINT: return PIPE_FORMAT_R32_UINT; case PIPE_FORMAT_A32_SINT: return PIPE_FORMAT_R32_SINT; case PIPE_FORMAT_A32_FLOAT: return PIPE_FORMAT_R32_FLOAT; default: return format; } } /** * Converts PIPE_FORMAT_R*A* to PIPE_FORMAT_R*G*. */ static enum pipe_format red_alpha_to_red_green(enum pipe_format format) { switch (format) { case PIPE_FORMAT_R8A8_UNORM: return PIPE_FORMAT_R8G8_UNORM; case PIPE_FORMAT_R8A8_SNORM: return PIPE_FORMAT_R8G8_SNORM; case PIPE_FORMAT_R8A8_UINT: return PIPE_FORMAT_R8G8_UINT; case PIPE_FORMAT_R8A8_SINT: return PIPE_FORMAT_R8G8_SINT; case PIPE_FORMAT_R16A16_UNORM: return PIPE_FORMAT_R16G16_UNORM; case PIPE_FORMAT_R16A16_SNORM: return PIPE_FORMAT_R16G16_SNORM; case PIPE_FORMAT_R16A16_UINT: return PIPE_FORMAT_R16G16_UINT; case PIPE_FORMAT_R16A16_SINT: return PIPE_FORMAT_R16G16_SINT; case PIPE_FORMAT_R16A16_FLOAT: return PIPE_FORMAT_R16G16_FLOAT; case PIPE_FORMAT_R32A32_UINT: return PIPE_FORMAT_R32G32_UINT; case PIPE_FORMAT_R32A32_SINT: return PIPE_FORMAT_R32G32_SINT; case PIPE_FORMAT_R32A32_FLOAT: return PIPE_FORMAT_R32G32_FLOAT; default: return format; } } /** * Converts PIPE_FORMAT_L*A* to PIPE_FORMAT_R*G*. */ static enum pipe_format luminance_alpha_to_red_green(enum pipe_format format) { switch (format) { case PIPE_FORMAT_L8A8_UNORM: return PIPE_FORMAT_R8G8_UNORM; case PIPE_FORMAT_L8A8_SNORM: return PIPE_FORMAT_R8G8_SNORM; case PIPE_FORMAT_L8A8_UINT: return PIPE_FORMAT_R8G8_UINT; case PIPE_FORMAT_L8A8_SINT: return PIPE_FORMAT_R8G8_SINT; case PIPE_FORMAT_L16A16_UNORM: return PIPE_FORMAT_R16G16_UNORM; case PIPE_FORMAT_L16A16_SNORM: return PIPE_FORMAT_R16G16_SNORM; case PIPE_FORMAT_L16A16_UINT: return PIPE_FORMAT_R16G16_UINT; case PIPE_FORMAT_L16A16_SINT: return PIPE_FORMAT_R16G16_SINT; case PIPE_FORMAT_L16A16_FLOAT: return PIPE_FORMAT_R16G16_FLOAT; case PIPE_FORMAT_L32A32_UINT: return PIPE_FORMAT_R32G32_UINT; case PIPE_FORMAT_L32A32_SINT: return PIPE_FORMAT_R32G32_SINT; case PIPE_FORMAT_L32A32_FLOAT: return PIPE_FORMAT_R32G32_FLOAT; default: return format; } } /** * Returns true if format is a PIPE_FORMAT_A* format, and false otherwise. */ static bool format_is_alpha(enum pipe_format format) { const struct util_format_description *desc = util_format_description(format); if (desc->nr_channels == 1 && desc->swizzle[0] == UTIL_FORMAT_SWIZZLE_0 && desc->swizzle[1] == UTIL_FORMAT_SWIZZLE_0 && desc->swizzle[2] == UTIL_FORMAT_SWIZZLE_0 && desc->swizzle[3] == UTIL_FORMAT_SWIZZLE_X) return true; return false; } /** * Returns true if format is a PIPE_FORMAT_R* format, and false otherwise. */ static bool format_is_red(enum pipe_format format) { const struct util_format_description *desc = util_format_description(format); if (desc->nr_channels == 1 && desc->swizzle[0] == UTIL_FORMAT_SWIZZLE_X && desc->swizzle[1] == UTIL_FORMAT_SWIZZLE_0 && desc->swizzle[2] == UTIL_FORMAT_SWIZZLE_0 && desc->swizzle[3] == UTIL_FORMAT_SWIZZLE_1) return true; return false; } /** * Returns true if format is a PIPE_FORMAT_L* format, and false otherwise. */ static bool format_is_luminance(enum pipe_format format) { const struct util_format_description *desc = util_format_description(format); if (desc->nr_channels == 1 && desc->swizzle[0] == UTIL_FORMAT_SWIZZLE_X && desc->swizzle[1] == UTIL_FORMAT_SWIZZLE_X && desc->swizzle[2] == UTIL_FORMAT_SWIZZLE_X && desc->swizzle[3] == UTIL_FORMAT_SWIZZLE_1) return true; return false; } /** * Returns true if format is a PIPE_FORMAT_R*A* format, and false otherwise. */ static bool format_is_red_alpha(enum pipe_format format) { const struct util_format_description *desc = util_format_description(format); if (desc->nr_channels == 2 && desc->swizzle[0] == UTIL_FORMAT_SWIZZLE_X && desc->swizzle[1] == UTIL_FORMAT_SWIZZLE_0 && desc->swizzle[2] == UTIL_FORMAT_SWIZZLE_0 && desc->swizzle[3] == UTIL_FORMAT_SWIZZLE_Y) return true; return false; } static bool format_is_swizzled_rgba(enum pipe_format format) { const struct util_format_description *desc = util_format_description(format); if ((desc->swizzle[0] == TGSI_SWIZZLE_X || desc->swizzle[0] == UTIL_FORMAT_SWIZZLE_0) && (desc->swizzle[1] == TGSI_SWIZZLE_Y || desc->swizzle[1] == UTIL_FORMAT_SWIZZLE_0) && (desc->swizzle[2] == TGSI_SWIZZLE_Z || desc->swizzle[2] == UTIL_FORMAT_SWIZZLE_0) && (desc->swizzle[3] == TGSI_SWIZZLE_W || desc->swizzle[3] == UTIL_FORMAT_SWIZZLE_1)) return false; return true; } struct format_table { unsigned char swizzle[4]; enum pipe_format format; }; static const struct format_table table_8888_unorm[] = { { { 0, 1, 2, 3 }, PIPE_FORMAT_R8G8B8A8_UNORM }, { { 2, 1, 0, 3 }, PIPE_FORMAT_B8G8R8A8_UNORM }, { { 3, 0, 1, 2 }, PIPE_FORMAT_A8R8G8B8_UNORM }, { { 3, 2, 1, 0 }, PIPE_FORMAT_A8B8G8R8_UNORM } }; static const struct format_table table_1010102_unorm[] = { { { 0, 1, 2, 3 }, PIPE_FORMAT_R10G10B10A2_UNORM }, { { 2, 1, 0, 3 }, PIPE_FORMAT_B10G10R10A2_UNORM } }; static const struct format_table table_1010102_snorm[] = { { { 0, 1, 2, 3 }, PIPE_FORMAT_R10G10B10A2_SNORM }, { { 2, 1, 0, 3 }, PIPE_FORMAT_B10G10R10A2_SNORM } }; static const struct format_table table_1010102_uint[] = { { { 0, 1, 2, 3 }, PIPE_FORMAT_R10G10B10A2_UINT }, { { 2, 1, 0, 3 }, PIPE_FORMAT_B10G10R10A2_UINT } }; static enum pipe_format swizzle_format(enum pipe_format format, const int * const swizzle) { unsigned i; switch (format) { case PIPE_FORMAT_R8G8B8A8_UNORM: case PIPE_FORMAT_B8G8R8A8_UNORM: case PIPE_FORMAT_A8R8G8B8_UNORM: case PIPE_FORMAT_A8B8G8R8_UNORM: for (i = 0; i < ARRAY_SIZE(table_8888_unorm); i++) { if (swizzle[0] == table_8888_unorm[i].swizzle[0] && swizzle[1] == table_8888_unorm[i].swizzle[1] && swizzle[2] == table_8888_unorm[i].swizzle[2] && swizzle[3] == table_8888_unorm[i].swizzle[3]) return table_8888_unorm[i].format; } break; case PIPE_FORMAT_R10G10B10A2_UNORM: case PIPE_FORMAT_B10G10R10A2_UNORM: for (i = 0; i < ARRAY_SIZE(table_1010102_unorm); i++) { if (swizzle[0] == table_1010102_unorm[i].swizzle[0] && swizzle[1] == table_1010102_unorm[i].swizzle[1] && swizzle[2] == table_1010102_unorm[i].swizzle[2] && swizzle[3] == table_1010102_unorm[i].swizzle[3]) return table_1010102_unorm[i].format; } break; case PIPE_FORMAT_R10G10B10A2_SNORM: case PIPE_FORMAT_B10G10R10A2_SNORM: for (i = 0; i < ARRAY_SIZE(table_1010102_snorm); i++) { if (swizzle[0] == table_1010102_snorm[i].swizzle[0] && swizzle[1] == table_1010102_snorm[i].swizzle[1] && swizzle[2] == table_1010102_snorm[i].swizzle[2] && swizzle[3] == table_1010102_snorm[i].swizzle[3]) return table_1010102_snorm[i].format; } break; case PIPE_FORMAT_R10G10B10A2_UINT: case PIPE_FORMAT_B10G10R10A2_UINT: for (i = 0; i < ARRAY_SIZE(table_1010102_uint); i++) { if (swizzle[0] == table_1010102_uint[i].swizzle[0] && swizzle[1] == table_1010102_uint[i].swizzle[1] && swizzle[2] == table_1010102_uint[i].swizzle[2] && swizzle[3] == table_1010102_uint[i].swizzle[3]) return table_1010102_uint[i].format; } break; default: break; } return PIPE_FORMAT_NONE; } static bool reinterpret_formats(enum pipe_format *src_format, enum pipe_format *dst_format) { enum pipe_format src = *src_format; enum pipe_format dst = *dst_format; /* Note: dst_format has already been transformed from luminance/intensity * to red when this function is called. The source format will never * be an intensity format, because GL_INTENSITY is not a legal value * for the format parameter in glTex(Sub)Image(). */ if (format_is_alpha(src)) { if (!format_is_alpha(dst)) return false; src = alpha_to_red(src); dst = alpha_to_red(dst); } else if (format_is_luminance(src)) { if (!format_is_red(dst) && !format_is_red_alpha(dst)) return false; src = util_format_luminance_to_red(src); } else if (util_format_is_luminance_alpha(src)) { src = luminance_alpha_to_red_green(src); if (format_is_red_alpha(dst)) { dst = red_alpha_to_red_green(dst); } else if (!format_is_red(dst)) return false; } else if (format_is_swizzled_rgba(src)) { const struct util_format_description *src_desc = util_format_description(src); const struct util_format_description *dst_desc = util_format_description(dst); int swizzle[4]; unsigned i; /* Make sure the format is an RGBA and not an RGBX format */ if (src_desc->nr_channels != 4 || src_desc->swizzle[3] == UTIL_FORMAT_SWIZZLE_1) return false; if (dst_desc->nr_channels != 4 || dst_desc->swizzle[3] == UTIL_FORMAT_SWIZZLE_1) return false; for (i = 0; i < 4; i++) swizzle[i] = dst_desc->swizzle[src_desc->swizzle[i]]; dst = swizzle_format(dst, swizzle); if (dst == PIPE_FORMAT_NONE) return false; src = unswizzle_format(src); } *src_format = src; *dst_format = dst; return true; } static void * create_pbo_upload_vs(struct st_context *st) { struct ureg_program *ureg; struct ureg_src in_pos; struct ureg_src in_instanceid; struct ureg_dst out_pos; struct ureg_dst out_layer; ureg = ureg_create(TGSI_PROCESSOR_VERTEX); if (!ureg) return NULL; in_pos = ureg_DECL_vs_input(ureg, TGSI_SEMANTIC_POSITION); out_pos = ureg_DECL_output(ureg, TGSI_SEMANTIC_POSITION, 0); if (st->pbo_upload.upload_layers) { in_instanceid = ureg_DECL_system_value(ureg, TGSI_SEMANTIC_INSTANCEID, 0); if (!st->pbo_upload.use_gs) out_layer = ureg_DECL_output(ureg, TGSI_SEMANTIC_LAYER, 0); } /* out_pos = in_pos */ ureg_MOV(ureg, out_pos, in_pos); if (st->pbo_upload.upload_layers) { if (st->pbo_upload.use_gs) { /* out_pos.z = i2f(gl_InstanceID) */ ureg_I2F(ureg, ureg_writemask(out_pos, TGSI_WRITEMASK_Z), ureg_scalar(in_instanceid, TGSI_SWIZZLE_X)); } else { /* out_layer = gl_InstanceID */ ureg_MOV(ureg, out_layer, in_instanceid); } } ureg_END(ureg); return ureg_create_shader_and_destroy(ureg, st->pipe); } static void * create_pbo_upload_gs(struct st_context *st) { static const int zero = 0; struct ureg_program *ureg; struct ureg_dst out_pos; struct ureg_dst out_layer; struct ureg_src in_pos; struct ureg_src imm; unsigned i; ureg = ureg_create(TGSI_PROCESSOR_GEOMETRY); if (!ureg) return NULL; ureg_property(ureg, TGSI_PROPERTY_GS_INPUT_PRIM, PIPE_PRIM_TRIANGLES); ureg_property(ureg, TGSI_PROPERTY_GS_OUTPUT_PRIM, PIPE_PRIM_TRIANGLE_STRIP); ureg_property(ureg, TGSI_PROPERTY_GS_MAX_OUTPUT_VERTICES, 3); out_pos = ureg_DECL_output(ureg, TGSI_SEMANTIC_POSITION, 0); out_layer = ureg_DECL_output(ureg, TGSI_SEMANTIC_LAYER, 0); in_pos = ureg_DECL_input(ureg, TGSI_SEMANTIC_POSITION, 0, 0, 1); imm = ureg_DECL_immediate_int(ureg, &zero, 1); for (i = 0; i < 3; ++i) { struct ureg_src in_pos_vertex = ureg_src_dimension(in_pos, i); /* out_pos = in_pos[i] */ ureg_MOV(ureg, out_pos, in_pos_vertex); /* out_layer.x = f2i(in_pos[i].z) */ ureg_F2I(ureg, ureg_writemask(out_layer, TGSI_WRITEMASK_X), ureg_scalar(in_pos_vertex, TGSI_SWIZZLE_Z)); ureg_EMIT(ureg, ureg_scalar(imm, TGSI_SWIZZLE_X)); } ureg_END(ureg); return ureg_create_shader_and_destroy(ureg, st->pipe); } static void * create_pbo_upload_fs(struct st_context *st) { struct pipe_context *pipe = st->pipe; struct pipe_screen *screen = pipe->screen; struct ureg_program *ureg; struct ureg_dst out; struct ureg_src sampler; struct ureg_src pos; struct ureg_src layer; struct ureg_src const0; struct ureg_dst temp0; ureg = ureg_create(TGSI_PROCESSOR_FRAGMENT); if (!ureg) return NULL; out = ureg_DECL_output(ureg, TGSI_SEMANTIC_COLOR, 0); sampler = ureg_DECL_sampler(ureg, 0); if (screen->get_param(screen, PIPE_CAP_TGSI_FS_POSITION_IS_SYSVAL)) { pos = ureg_DECL_system_value(ureg, TGSI_SEMANTIC_POSITION, 0); } else { pos = ureg_DECL_fs_input(ureg, TGSI_SEMANTIC_POSITION, 0, TGSI_INTERPOLATE_LINEAR); } if (st->pbo_upload.upload_layers) { layer = ureg_DECL_fs_input(ureg, TGSI_SEMANTIC_LAYER, 0, TGSI_INTERPOLATE_CONSTANT); } const0 = ureg_DECL_constant(ureg, 0); temp0 = ureg_DECL_temporary(ureg); /* Note: const0 = [ -xoffset + skip_pixels, -yoffset, stride, image_height ] */ /* temp0.xy = f2i(temp0.xy) */ ureg_F2I(ureg, ureg_writemask(temp0, TGSI_WRITEMASK_XY), ureg_swizzle(pos, TGSI_SWIZZLE_X, TGSI_SWIZZLE_Y, TGSI_SWIZZLE_Y, TGSI_SWIZZLE_Y)); /* temp0.xy = temp0.xy + const0.xy */ ureg_UADD(ureg, ureg_writemask(temp0, TGSI_WRITEMASK_XY), ureg_swizzle(ureg_src(temp0), TGSI_SWIZZLE_X, TGSI_SWIZZLE_Y, TGSI_SWIZZLE_Y, TGSI_SWIZZLE_Y), ureg_swizzle(const0, TGSI_SWIZZLE_X, TGSI_SWIZZLE_Y, TGSI_SWIZZLE_Y, TGSI_SWIZZLE_Y)); /* temp0.x = const0.z * temp0.y + temp0.x */ ureg_UMAD(ureg, ureg_writemask(temp0, TGSI_WRITEMASK_X), ureg_scalar(const0, TGSI_SWIZZLE_Z), ureg_scalar(ureg_src(temp0), TGSI_SWIZZLE_Y), ureg_scalar(ureg_src(temp0), TGSI_SWIZZLE_X)); if (st->pbo_upload.upload_layers) { /* temp0.x = const0.w * layer + temp0.x */ ureg_UMAD(ureg, ureg_writemask(temp0, TGSI_WRITEMASK_X), ureg_scalar(const0, TGSI_SWIZZLE_W), ureg_scalar(layer, TGSI_SWIZZLE_X), ureg_scalar(ureg_src(temp0), TGSI_SWIZZLE_X)); } /* temp0.w = 0 */ ureg_MOV(ureg, ureg_writemask(temp0, TGSI_WRITEMASK_W), ureg_imm1u(ureg, 0)); /* out = txf(sampler, temp0.x) */ ureg_TXF(ureg, out, TGSI_TEXTURE_BUFFER, ureg_src(temp0), sampler); ureg_release_temporary(ureg, temp0); ureg_END(ureg); return ureg_create_shader_and_destroy(ureg, pipe); } static bool try_pbo_upload_common(struct gl_context *ctx, struct pipe_surface *surface, int xoffset, int yoffset, unsigned upload_width, unsigned upload_height, struct pipe_resource *buffer, enum pipe_format src_format, intptr_t buf_offset, unsigned bytes_per_pixel, unsigned stride, unsigned image_height) { struct st_context *st = st_context(ctx); struct cso_context *cso = st->cso_context; struct pipe_context *pipe = st->pipe; unsigned depth = surface->u.tex.last_layer - surface->u.tex.first_layer + 1; unsigned skip_pixels = 0; bool success = false; /* Check alignment. */ { unsigned ofs = (buf_offset * bytes_per_pixel) % ctx->Const.TextureBufferOffsetAlignment; if (ofs != 0) { if (ofs % bytes_per_pixel != 0) return false; skip_pixels = ofs / bytes_per_pixel; buf_offset -= skip_pixels; } } /* Create the shaders */ if (!st->pbo_upload.vs) { st->pbo_upload.vs = create_pbo_upload_vs(st); if (!st->pbo_upload.vs) return false; } if (depth != 1 && st->pbo_upload.use_gs && !st->pbo_upload.gs) { st->pbo_upload.gs = create_pbo_upload_gs(st); if (!st->pbo_upload.gs) return false; } if (!st->pbo_upload.fs) { st->pbo_upload.fs = create_pbo_upload_fs(st); if (!st->pbo_upload.fs) return false; } cso_save_state(cso, (CSO_BIT_FRAGMENT_SAMPLER_VIEWS | CSO_BIT_FRAGMENT_SAMPLERS | CSO_BIT_VERTEX_ELEMENTS | CSO_BIT_AUX_VERTEX_BUFFER_SLOT | CSO_BIT_FRAMEBUFFER | CSO_BIT_VIEWPORT | CSO_BIT_BLEND | CSO_BIT_DEPTH_STENCIL_ALPHA | CSO_BIT_RASTERIZER | CSO_BIT_STREAM_OUTPUTS | CSO_BIT_PAUSE_QUERIES | CSO_BITS_ALL_SHADERS)); cso_save_constant_buffer_slot0(cso, PIPE_SHADER_FRAGMENT); /* Set up the sampler_view */ { unsigned first_element = buf_offset; unsigned last_element = buf_offset + skip_pixels + upload_width - 1 + (upload_height - 1 + (depth - 1) * image_height) * stride; struct pipe_sampler_view templ; struct pipe_sampler_view *sampler_view; struct pipe_sampler_state sampler = {0}; const struct pipe_sampler_state *samplers[1] = {&sampler}; /* This should be ensured by Mesa before calling our callbacks */ assert((last_element + 1) * bytes_per_pixel <= buffer->width0); if (last_element - first_element > ctx->Const.MaxTextureBufferSize - 1) goto fail; memset(&templ, 0, sizeof(templ)); templ.target = PIPE_BUFFER; templ.format = src_format; templ.u.buf.first_element = first_element; templ.u.buf.last_element = last_element; templ.swizzle_r = PIPE_SWIZZLE_RED; templ.swizzle_g = PIPE_SWIZZLE_GREEN; templ.swizzle_b = PIPE_SWIZZLE_BLUE; templ.swizzle_a = PIPE_SWIZZLE_ALPHA; sampler_view = pipe->create_sampler_view(pipe, buffer, &templ); if (sampler_view == NULL) goto fail; cso_set_sampler_views(cso, PIPE_SHADER_FRAGMENT, 1, &sampler_view); pipe_sampler_view_reference(&sampler_view, NULL); cso_set_samplers(cso, PIPE_SHADER_FRAGMENT, 1, samplers); } /* Upload vertices */ { struct pipe_vertex_buffer vbo; struct pipe_vertex_element velem; float x0 = (float) xoffset / surface->width * 2.0f - 1.0f; float y0 = (float) yoffset / surface->height * 2.0f - 1.0f; float x1 = (float) (xoffset + upload_width) / surface->width * 2.0f - 1.0f; float y1 = (float) (yoffset + upload_height) / surface->height * 2.0f - 1.0f; float *verts = NULL; vbo.user_buffer = NULL; vbo.buffer = NULL; vbo.stride = 2 * sizeof(float); u_upload_alloc(st->uploader, 0, 8 * sizeof(float), 4, &vbo.buffer_offset, &vbo.buffer, (void **) &verts); if (!verts) goto fail; verts[0] = x0; verts[1] = y0; verts[2] = x0; verts[3] = y1; verts[4] = x1; verts[5] = y0; verts[6] = x1; verts[7] = y1; u_upload_unmap(st->uploader); velem.src_offset = 0; velem.instance_divisor = 0; velem.vertex_buffer_index = cso_get_aux_vertex_buffer_slot(cso); velem.src_format = PIPE_FORMAT_R32G32_FLOAT; cso_set_vertex_elements(cso, 1, &velem); cso_set_vertex_buffers(cso, velem.vertex_buffer_index, 1, &vbo); pipe_resource_reference(&vbo.buffer, NULL); } /* Upload constants */ /* Note: the user buffer must be valid until draw time */ struct { int32_t xoffset; int32_t yoffset; int32_t stride; int32_t image_size; } constants; { struct pipe_constant_buffer cb; constants.xoffset = -xoffset + skip_pixels; constants.yoffset = -yoffset; constants.stride = stride; constants.image_size = stride * image_height; if (st->constbuf_uploader) { cb.buffer = NULL; cb.user_buffer = NULL; u_upload_data(st->constbuf_uploader, 0, sizeof(constants), ctx->Const.UniformBufferOffsetAlignment, &constants, &cb.buffer_offset, &cb.buffer); if (!cb.buffer) goto fail; u_upload_unmap(st->constbuf_uploader); } else { cb.buffer = NULL; cb.user_buffer = &constants; cb.buffer_offset = 0; } cb.buffer_size = sizeof(constants); cso_set_constant_buffer(cso, PIPE_SHADER_FRAGMENT, 0, &cb); pipe_resource_reference(&cb.buffer, NULL); } /* Framebuffer_state */ { struct pipe_framebuffer_state fb; memset(&fb, 0, sizeof(fb)); fb.width = surface->width; fb.height = surface->height; fb.nr_cbufs = 1; pipe_surface_reference(&fb.cbufs[0], surface); cso_set_framebuffer(cso, &fb); pipe_surface_reference(&fb.cbufs[0], NULL); } cso_set_viewport_dims(cso, surface->width, surface->height, FALSE); /* Blend state */ cso_set_blend(cso, &st->pbo_upload.blend); /* Depth/stencil/alpha state */ { struct pipe_depth_stencil_alpha_state dsa; memset(&dsa, 0, sizeof(dsa)); cso_set_depth_stencil_alpha(cso, &dsa); } /* Rasterizer state */ cso_set_rasterizer(cso, &st->pbo_upload.raster); /* Set up the shaders */ cso_set_vertex_shader_handle(cso, st->pbo_upload.vs); cso_set_geometry_shader_handle(cso, depth != 1 ? st->pbo_upload.gs : NULL); cso_set_tessctrl_shader_handle(cso, NULL); cso_set_tesseval_shader_handle(cso, NULL); cso_set_fragment_shader_handle(cso, st->pbo_upload.fs); /* Disable stream output */ cso_set_stream_outputs(cso, 0, NULL, 0); if (depth == 1) { cso_draw_arrays(cso, PIPE_PRIM_TRIANGLE_STRIP, 0, 4); } else { cso_draw_arrays_instanced(cso, PIPE_PRIM_TRIANGLE_STRIP, 0, 4, 0, depth); } success = true; fail: cso_restore_state(cso); cso_restore_constant_buffer_slot0(cso, PIPE_SHADER_FRAGMENT); return success; } static bool try_pbo_upload(struct gl_context *ctx, GLuint dims, struct gl_texture_image *texImage, GLenum format, GLenum type, enum pipe_format dst_format, GLint xoffset, GLint yoffset, GLint zoffset, GLint width, GLint height, GLint depth, const void *pixels, const struct gl_pixelstore_attrib *unpack) { struct st_context *st = st_context(ctx); struct st_texture_image *stImage = st_texture_image(texImage); struct st_texture_object *stObj = st_texture_object(texImage->TexObject); struct pipe_resource *texture = stImage->pt; struct pipe_context *pipe = st->pipe; struct pipe_screen *screen = pipe->screen; struct pipe_surface *surface = NULL; enum pipe_format src_format; const struct util_format_description *desc; GLenum gl_target = texImage->TexObject->Target; intptr_t buf_offset; unsigned bytes_per_pixel; unsigned stride, image_height; bool success; if (!st->pbo_upload.enabled) return false; /* From now on, we need the gallium representation of dimensions. */ if (gl_target == GL_TEXTURE_1D_ARRAY) { depth = height; height = 1; zoffset = yoffset; yoffset = 0; image_height = 1; } else { image_height = unpack->ImageHeight > 0 ? unpack->ImageHeight : height; } if (depth != 1 && !st->pbo_upload.upload_layers) return false; /* Choose the source format. Initially, we do so without checking driver * support at all because of the remapping we later perform and because * at least the Radeon driver actually supports some formats for texture * buffers which it doesn't support for regular textures. */ src_format = st_choose_matching_format(st, 0, format, type, unpack->SwapBytes); if (!src_format) { return false; } src_format = util_format_linear(src_format); desc = util_format_description(src_format); if (desc->layout != UTIL_FORMAT_LAYOUT_PLAIN) return false; if (desc->colorspace != UTIL_FORMAT_COLORSPACE_RGB) return false; if (st->pbo_upload.rgba_only) { enum pipe_format orig_dst_format = dst_format; if (!reinterpret_formats(&src_format, &dst_format)) { return false; } if (dst_format != orig_dst_format && !screen->is_format_supported(screen, dst_format, PIPE_TEXTURE_2D, 0, PIPE_BIND_RENDER_TARGET)) { return false; } } if (!src_format || !screen->is_format_supported(screen, src_format, PIPE_BUFFER, 0, PIPE_BIND_SAMPLER_VIEW)) { return false; } /* Check if the offset satisfies the alignment requirements */ buf_offset = (intptr_t) pixels; bytes_per_pixel = desc->block.bits / 8; if (buf_offset % bytes_per_pixel) { return false; } /* Convert to texels */ buf_offset = buf_offset / bytes_per_pixel; /* Compute the stride, taking unpack->Alignment into account */ { unsigned pixels_per_row = unpack->RowLength > 0 ? unpack->RowLength : width; unsigned bytes_per_row = pixels_per_row * bytes_per_pixel; unsigned remainder = bytes_per_row % unpack->Alignment; unsigned offset_rows; if (remainder > 0) bytes_per_row += (unpack->Alignment - remainder); if (bytes_per_row % bytes_per_pixel) { return false; } stride = bytes_per_row / bytes_per_pixel; offset_rows = unpack->SkipRows; if (dims == 3) offset_rows += image_height * unpack->SkipImages; buf_offset += unpack->SkipPixels + stride * offset_rows; } /* Set up the surface */ { unsigned level = stObj->pt != stImage->pt ? 0 : texImage->TexObject->MinLevel + texImage->Level; unsigned max_layer = util_max_layer(texture, level); zoffset += texImage->Face + texImage->TexObject->MinLayer; struct pipe_surface templ; memset(&templ, 0, sizeof(templ)); templ.format = dst_format; templ.u.tex.level = level; templ.u.tex.first_layer = MIN2(zoffset, max_layer); templ.u.tex.last_layer = MIN2(zoffset + depth - 1, max_layer); surface = pipe->create_surface(pipe, texture, &templ); if (!surface) return false; } success = try_pbo_upload_common(ctx, surface, xoffset, yoffset, width, height, st_buffer_object(unpack->BufferObj)->buffer, src_format, buf_offset, bytes_per_pixel, stride, image_height); pipe_surface_reference(&surface, NULL); return success; } static void st_TexSubImage(struct gl_context *ctx, GLuint dims, struct gl_texture_image *texImage, GLint xoffset, GLint yoffset, GLint zoffset, GLint width, GLint height, GLint depth, GLenum format, GLenum type, const void *pixels, const struct gl_pixelstore_attrib *unpack) { struct st_context *st = st_context(ctx); struct st_texture_image *stImage = st_texture_image(texImage); struct st_texture_object *stObj = st_texture_object(texImage->TexObject); struct pipe_context *pipe = st->pipe; struct pipe_screen *screen = pipe->screen; struct pipe_resource *dst = stImage->pt; struct pipe_resource *src = NULL; struct pipe_resource src_templ; struct pipe_transfer *transfer; struct pipe_blit_info blit; enum pipe_format src_format, dst_format; mesa_format mesa_src_format; GLenum gl_target = texImage->TexObject->Target; unsigned bind; GLubyte *map; assert(!_mesa_is_format_etc2(texImage->TexFormat) && texImage->TexFormat != MESA_FORMAT_ETC1_RGB8); if (!st->prefer_blit_based_texture_transfer) { goto fallback; } if (!dst) { goto fallback; } /* XXX Fallback for depth-stencil formats due to an incomplete stencil * blit implementation in some drivers. */ if (format == GL_DEPTH_STENCIL) { goto fallback; } /* If the base internal format and the texture format don't match, * we can't use blit-based TexSubImage. */ if (texImage->_BaseFormat != _mesa_get_format_base_format(texImage->TexFormat)) { goto fallback; } /* See if the destination format is supported. */ if (format == GL_DEPTH_COMPONENT || format == GL_DEPTH_STENCIL) bind = PIPE_BIND_DEPTH_STENCIL; else bind = PIPE_BIND_RENDER_TARGET; /* For luminance and intensity, only the red channel is stored * in the destination. */ dst_format = util_format_linear(dst->format); dst_format = util_format_luminance_to_red(dst_format); dst_format = util_format_intensity_to_red(dst_format); if (!dst_format || !screen->is_format_supported(screen, dst_format, dst->target, dst->nr_samples, bind)) { goto fallback; } if (_mesa_is_bufferobj(unpack->BufferObj)) { if (try_pbo_upload(ctx, dims, texImage, format, type, dst_format, xoffset, yoffset, zoffset, width, height, depth, pixels, unpack)) return; } /* See if the texture format already matches the format and type, * in which case the memcpy-based fast path will likely be used and * we don't have to blit. */ if (_mesa_format_matches_format_and_type(texImage->TexFormat, format, type, unpack->SwapBytes, NULL)) { goto fallback; } /* Choose the source format. */ src_format = st_choose_matching_format(st, PIPE_BIND_SAMPLER_VIEW, format, type, unpack->SwapBytes); if (!src_format) { goto fallback; } mesa_src_format = st_pipe_format_to_mesa_format(src_format); /* There is no reason to do this if we cannot use memcpy for the temporary * source texture at least. This also takes transfer ops into account, * etc. */ if (!_mesa_texstore_can_use_memcpy(ctx, _mesa_get_format_base_format(mesa_src_format), mesa_src_format, format, type, unpack)) { goto fallback; } /* TexSubImage only sets a single cubemap face. */ if (gl_target == GL_TEXTURE_CUBE_MAP) { gl_target = GL_TEXTURE_2D; } /* TexSubImage can specify subsets of cube map array faces * so we need to upload via 2D array instead */ if (gl_target == GL_TEXTURE_CUBE_MAP_ARRAY) { gl_target = GL_TEXTURE_2D_ARRAY; } /* Initialize the source texture description. */ memset(&src_templ, 0, sizeof(src_templ)); src_templ.target = gl_target_to_pipe(gl_target); src_templ.format = src_format; src_templ.bind = PIPE_BIND_SAMPLER_VIEW; src_templ.usage = PIPE_USAGE_STAGING; st_gl_texture_dims_to_pipe_dims(gl_target, width, height, depth, &src_templ.width0, &src_templ.height0, &src_templ.depth0, &src_templ.array_size); /* Check for NPOT texture support. */ if (!screen->get_param(screen, PIPE_CAP_NPOT_TEXTURES) && (!util_is_power_of_two(src_templ.width0) || !util_is_power_of_two(src_templ.height0) || !util_is_power_of_two(src_templ.depth0))) { goto fallback; } /* Create the source texture. */ src = screen->resource_create(screen, &src_templ); if (!src) { goto fallback; } /* Map source pixels. */ pixels = _mesa_validate_pbo_teximage(ctx, dims, width, height, depth, format, type, pixels, unpack, "glTexSubImage"); if (!pixels) { /* This is a GL error. */ pipe_resource_reference(&src, NULL); return; } /* From now on, we need the gallium representation of dimensions. */ if (gl_target == GL_TEXTURE_1D_ARRAY) { zoffset = yoffset; yoffset = 0; depth = height; height = 1; } map = pipe_transfer_map_3d(pipe, src, 0, PIPE_TRANSFER_WRITE, 0, 0, 0, width, height, depth, &transfer); if (!map) { _mesa_unmap_teximage_pbo(ctx, unpack); pipe_resource_reference(&src, NULL); goto fallback; } /* Upload pixels (just memcpy). */ { const uint bytesPerRow = width * util_format_get_blocksize(src_format); GLuint row, slice; for (slice = 0; slice < (unsigned) depth; slice++) { if (gl_target == GL_TEXTURE_1D_ARRAY) { /* 1D array textures. * We need to convert gallium coords to GL coords. */ void *src = _mesa_image_address2d(unpack, pixels, width, depth, format, type, slice, 0); memcpy(map, src, bytesPerRow); } else { ubyte *slice_map = map; for (row = 0; row < (unsigned) height; row++) { void *src = _mesa_image_address(dims, unpack, pixels, width, height, format, type, slice, row, 0); memcpy(slice_map, src, bytesPerRow); slice_map += transfer->stride; } } map += transfer->layer_stride; } } pipe_transfer_unmap(pipe, transfer); _mesa_unmap_teximage_pbo(ctx, unpack); /* Blit. */ memset(&blit, 0, sizeof(blit)); blit.src.resource = src; blit.src.level = 0; blit.src.format = src_format; blit.dst.resource = dst; blit.dst.level = stObj->pt != stImage->pt ? 0 : texImage->TexObject->MinLevel + texImage->Level; blit.dst.format = dst_format; blit.src.box.x = blit.src.box.y = blit.src.box.z = 0; blit.dst.box.x = xoffset; blit.dst.box.y = yoffset; blit.dst.box.z = zoffset + texImage->Face + texImage->TexObject->MinLayer; blit.src.box.width = blit.dst.box.width = width; blit.src.box.height = blit.dst.box.height = height; blit.src.box.depth = blit.dst.box.depth = depth; blit.mask = st_get_blit_mask(format, texImage->_BaseFormat); blit.filter = PIPE_TEX_FILTER_NEAREST; blit.scissor_enable = FALSE; st->pipe->blit(st->pipe, &blit); pipe_resource_reference(&src, NULL); return; fallback: _mesa_store_texsubimage(ctx, dims, texImage, xoffset, yoffset, zoffset, width, height, depth, format, type, pixels, unpack); } static void st_TexImage(struct gl_context * ctx, GLuint dims, struct gl_texture_image *texImage, GLenum format, GLenum type, const void *pixels, const struct gl_pixelstore_attrib *unpack) { assert(dims == 1 || dims == 2 || dims == 3); prep_teximage(ctx, texImage, format, type); if (texImage->Width == 0 || texImage->Height == 0 || texImage->Depth == 0) return; /* allocate storage for texture data */ if (!ctx->Driver.AllocTextureImageBuffer(ctx, texImage)) { _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage%uD", dims); return; } st_TexSubImage(ctx, dims, texImage, 0, 0, 0, texImage->Width, texImage->Height, texImage->Depth, format, type, pixels, unpack); } static void st_CompressedTexSubImage(struct gl_context *ctx, GLuint dims, struct gl_texture_image *texImage, GLint x, GLint y, GLint z, GLsizei w, GLsizei h, GLsizei d, GLenum format, GLsizei imageSize, const void *data) { struct st_context *st = st_context(ctx); struct st_texture_image *stImage = st_texture_image(texImage); struct st_texture_object *stObj = st_texture_object(texImage->TexObject); struct pipe_resource *texture = stImage->pt; struct pipe_context *pipe = st->pipe; struct pipe_screen *screen = pipe->screen; struct pipe_resource *dst = stImage->pt; struct pipe_surface *surface = NULL; struct compressed_pixelstore store; enum pipe_format copy_format; unsigned bytes_per_block; unsigned bw, bh; intptr_t buf_offset; bool success = false; /* Check basic pre-conditions for PBO upload */ if (!st->prefer_blit_based_texture_transfer) { goto fallback; } if (!_mesa_is_bufferobj(ctx->Unpack.BufferObj)) goto fallback; if ((_mesa_is_format_etc2(texImage->TexFormat) && !st->has_etc2) || (texImage->TexFormat == MESA_FORMAT_ETC1_RGB8 && !st->has_etc1)) { /* ETC isn't supported and is represented by uncompressed formats. */ goto fallback; } if (!dst) { goto fallback; } if (!st->pbo_upload.enabled || !screen->get_param(screen, PIPE_CAP_SURFACE_REINTERPRET_BLOCKS)) { goto fallback; } /* Choose the pipe format for the upload. */ bytes_per_block = util_format_get_blocksize(dst->format); bw = util_format_get_blockwidth(dst->format); bh = util_format_get_blockheight(dst->format); switch (bytes_per_block) { case 8: copy_format = PIPE_FORMAT_R16G16B16A16_UINT; break; case 16: copy_format = PIPE_FORMAT_R32G32B32A32_UINT; break; default: goto fallback; } if (!screen->is_format_supported(screen, copy_format, PIPE_BUFFER, 0, PIPE_BIND_SAMPLER_VIEW)) { goto fallback; } if (!screen->is_format_supported(screen, copy_format, dst->target, dst->nr_samples, PIPE_BIND_RENDER_TARGET)) { goto fallback; } /* Interpret the pixelstore settings. */ _mesa_compute_compressed_pixelstore(dims, texImage->TexFormat, w, h, d, &ctx->Unpack, &store); assert(store.CopyBytesPerRow % bytes_per_block == 0); assert(store.SkipBytes % bytes_per_block == 0); /* Compute the offset into the buffer */ buf_offset = (intptr_t)data + store.SkipBytes; if (buf_offset % bytes_per_block) { goto fallback; } buf_offset = buf_offset / bytes_per_block; /* Set up the surface. */ { unsigned level = stObj->pt != stImage->pt ? 0 : texImage->TexObject->MinLevel + texImage->Level; unsigned max_layer = util_max_layer(texture, level); z += texImage->Face + texImage->TexObject->MinLayer; struct pipe_surface templ; memset(&templ, 0, sizeof(templ)); templ.format = copy_format; templ.u.tex.level = level; templ.u.tex.first_layer = MIN2(z, max_layer); templ.u.tex.last_layer = MIN2(z + d - 1, max_layer); surface = pipe->create_surface(pipe, texture, &templ); if (!surface) goto fallback; } success = try_pbo_upload_common(ctx, surface, x / bw, y / bh, store.CopyBytesPerRow / bytes_per_block, store.CopyRowsPerSlice, st_buffer_object(ctx->Unpack.BufferObj)->buffer, copy_format, buf_offset, bytes_per_block, store.TotalBytesPerRow / bytes_per_block, store.TotalRowsPerSlice); pipe_surface_reference(&surface, NULL); if (success) return; fallback: _mesa_store_compressed_texsubimage(ctx, dims, texImage, x, y, z, w, h, d, format, imageSize, data); } static void st_CompressedTexImage(struct gl_context *ctx, GLuint dims, struct gl_texture_image *texImage, GLsizei imageSize, const void *data) { prep_teximage(ctx, texImage, GL_NONE, GL_NONE); /* only 2D and 3D compressed images are supported at this time */ if (dims == 1) { _mesa_problem(ctx, "Unexpected glCompressedTexImage1D call"); return; } /* This is pretty simple, because unlike the general texstore path we don't * have to worry about the usual image unpacking or image transfer * operations. */ assert(texImage); assert(texImage->Width > 0); assert(texImage->Height > 0); assert(texImage->Depth > 0); /* allocate storage for texture data */ if (!st_AllocTextureImageBuffer(ctx, texImage)) { _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCompressedTexImage%uD", dims); return; } st_CompressedTexSubImage(ctx, dims, texImage, 0, 0, 0, texImage->Width, texImage->Height, texImage->Depth, texImage->TexFormat, imageSize, data); } /** * Called via ctx->Driver.GetTexSubImage() * * This uses a blit to copy the texture to a texture format which matches * the format and type combo and then a fast read-back is done using memcpy. * We can do arbitrary X/Y/Z/W/0/1 swizzling here as long as there is * a format which matches the swizzling. * * If such a format isn't available, it falls back to _mesa_GetTexImage_sw. * * NOTE: Drivers usually do a blit to convert between tiled and linear * texture layouts during texture uploads/downloads, so the blit * we do here should be free in such cases. */ static void st_GetTexSubImage(struct gl_context * ctx, GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width, GLsizei height, GLint depth, GLenum format, GLenum type, void * pixels, struct gl_texture_image *texImage) { struct st_context *st = st_context(ctx); struct pipe_context *pipe = st->pipe; struct pipe_screen *screen = pipe->screen; struct st_texture_image *stImage = st_texture_image(texImage); struct st_texture_object *stObj = st_texture_object(texImage->TexObject); struct pipe_resource *src = stObj->pt; struct pipe_resource *dst = NULL; struct pipe_resource dst_templ; enum pipe_format dst_format, src_format; mesa_format mesa_format; GLenum gl_target = texImage->TexObject->Target; enum pipe_texture_target pipe_target; struct pipe_blit_info blit; unsigned bind = PIPE_BIND_TRANSFER_READ; struct pipe_transfer *tex_xfer; ubyte *map = NULL; boolean done = FALSE; assert(!_mesa_is_format_etc2(texImage->TexFormat) && texImage->TexFormat != MESA_FORMAT_ETC1_RGB8); if (!st->prefer_blit_based_texture_transfer && !_mesa_is_format_compressed(texImage->TexFormat)) { /* Try to avoid the fallback if we're doing texture decompression here */ goto fallback; } if (!stImage->pt || !src) { goto fallback; } /* XXX Fallback to _mesa_GetTexImage_sw for depth-stencil formats * due to an incomplete stencil blit implementation in some drivers. */ if (format == GL_DEPTH_STENCIL || format == GL_STENCIL_INDEX) { goto fallback; } /* If the base internal format and the texture format don't match, we have * to fall back to _mesa_GetTexImage_sw. */ if (texImage->_BaseFormat != _mesa_get_format_base_format(texImage->TexFormat)) { goto fallback; } /* See if the texture format already matches the format and type, * in which case the memcpy-based fast path will be used. */ if (_mesa_format_matches_format_and_type(texImage->TexFormat, format, type, ctx->Pack.SwapBytes, NULL)) { goto fallback; } /* Convert the source format to what is expected by GetTexImage * and see if it's supported. * * This only applies to glGetTexImage: * - Luminance must be returned as (L,0,0,1). * - Luminance alpha must be returned as (L,0,0,A). * - Intensity must be returned as (I,0,0,1) */ if (stObj->surface_based) src_format = util_format_linear(stObj->surface_format); else src_format = util_format_linear(src->format); src_format = util_format_luminance_to_red(src_format); src_format = util_format_intensity_to_red(src_format); if (!src_format || !screen->is_format_supported(screen, src_format, src->target, src->nr_samples, PIPE_BIND_SAMPLER_VIEW)) { goto fallback; } if (format == GL_DEPTH_COMPONENT || format == GL_DEPTH_STENCIL) bind |= PIPE_BIND_DEPTH_STENCIL; else bind |= PIPE_BIND_RENDER_TARGET; /* GetTexImage only returns a single face for cubemaps. */ if (gl_target == GL_TEXTURE_CUBE_MAP) { gl_target = GL_TEXTURE_2D; } pipe_target = gl_target_to_pipe(gl_target); /* Choose the destination format by finding the best match * for the format+type combo. */ dst_format = st_choose_matching_format(st, bind, format, type, ctx->Pack.SwapBytes); if (dst_format == PIPE_FORMAT_NONE) { GLenum dst_glformat; /* Fall back to _mesa_GetTexImage_sw except for compressed formats, * where decompression with a blit is always preferred. */ if (!util_format_is_compressed(src->format)) { goto fallback; } /* Set the appropriate format for the decompressed texture. * Luminance and sRGB formats shouldn't appear here.*/ switch (src_format) { case PIPE_FORMAT_DXT1_RGB: case PIPE_FORMAT_DXT1_RGBA: case PIPE_FORMAT_DXT3_RGBA: case PIPE_FORMAT_DXT5_RGBA: case PIPE_FORMAT_RGTC1_UNORM: case PIPE_FORMAT_RGTC2_UNORM: case PIPE_FORMAT_ETC1_RGB8: case PIPE_FORMAT_BPTC_RGBA_UNORM: dst_glformat = GL_RGBA8; break; case PIPE_FORMAT_RGTC1_SNORM: case PIPE_FORMAT_RGTC2_SNORM: if (!ctx->Extensions.EXT_texture_snorm) goto fallback; dst_glformat = GL_RGBA8_SNORM; break; case PIPE_FORMAT_BPTC_RGB_FLOAT: case PIPE_FORMAT_BPTC_RGB_UFLOAT: if (!ctx->Extensions.ARB_texture_float) goto fallback; dst_glformat = GL_RGBA32F; break; default: assert(0); goto fallback; } dst_format = st_choose_format(st, dst_glformat, format, type, pipe_target, 0, bind, FALSE); if (dst_format == PIPE_FORMAT_NONE) { /* unable to get an rgba format!?! */ goto fallback; } } /* create the destination texture of size (width X height X depth) */ memset(&dst_templ, 0, sizeof(dst_templ)); dst_templ.target = pipe_target; dst_templ.format = dst_format; dst_templ.bind = bind; dst_templ.usage = PIPE_USAGE_STAGING; st_gl_texture_dims_to_pipe_dims(gl_target, width, height, depth, &dst_templ.width0, &dst_templ.height0, &dst_templ.depth0, &dst_templ.array_size); dst = screen->resource_create(screen, &dst_templ); if (!dst) { goto fallback; } /* From now on, we need the gallium representation of dimensions. */ if (gl_target == GL_TEXTURE_1D_ARRAY) { zoffset = yoffset; yoffset = 0; depth = height; height = 1; } assert(texImage->Face == 0 || texImage->TexObject->MinLayer == 0 || zoffset == 0); memset(&blit, 0, sizeof(blit)); blit.src.resource = src; blit.src.level = texImage->Level + texImage->TexObject->MinLevel; blit.src.format = src_format; blit.dst.resource = dst; blit.dst.level = 0; blit.dst.format = dst->format; blit.src.box.x = xoffset; blit.dst.box.x = 0; blit.src.box.y = yoffset; blit.dst.box.y = 0; blit.src.box.z = texImage->Face + texImage->TexObject->MinLayer + zoffset; blit.dst.box.z = 0; blit.src.box.width = blit.dst.box.width = width; blit.src.box.height = blit.dst.box.height = height; blit.src.box.depth = blit.dst.box.depth = depth; blit.mask = st_get_blit_mask(texImage->_BaseFormat, format); blit.filter = PIPE_TEX_FILTER_NEAREST; blit.scissor_enable = FALSE; /* blit/render/decompress */ st->pipe->blit(st->pipe, &blit); pixels = _mesa_map_pbo_dest(ctx, &ctx->Pack, pixels); map = pipe_transfer_map_3d(pipe, dst, 0, PIPE_TRANSFER_READ, 0, 0, 0, width, height, depth, &tex_xfer); if (!map) { goto end; } mesa_format = st_pipe_format_to_mesa_format(dst_format); /* copy/pack data into user buffer */ if (_mesa_format_matches_format_and_type(mesa_format, format, type, ctx->Pack.SwapBytes, NULL)) { /* memcpy */ const uint bytesPerRow = width * util_format_get_blocksize(dst_format); GLuint row, slice; for (slice = 0; slice < depth; slice++) { if (gl_target == GL_TEXTURE_1D_ARRAY) { /* 1D array textures. * We need to convert gallium coords to GL coords. */ void *dest = _mesa_image_address3d(&ctx->Pack, pixels, width, depth, format, type, 0, slice, 0); memcpy(dest, map, bytesPerRow); } else { ubyte *slice_map = map; for (row = 0; row < height; row++) { void *dest = _mesa_image_address3d(&ctx->Pack, pixels, width, height, format, type, slice, row, 0); memcpy(dest, slice_map, bytesPerRow); slice_map += tex_xfer->stride; } } map += tex_xfer->layer_stride; } } else { /* format translation via floats */ GLuint row, slice; GLfloat *rgba; uint32_t dstMesaFormat; int dstStride, srcStride; assert(util_format_is_compressed(src->format)); rgba = malloc(width * 4 * sizeof(GLfloat)); if (!rgba) { goto end; } if (ST_DEBUG & DEBUG_FALLBACK) debug_printf("%s: fallback format translation\n", __func__); dstMesaFormat = _mesa_format_from_format_and_type(format, type); dstStride = _mesa_image_row_stride(&ctx->Pack, width, format, type); srcStride = 4 * width * sizeof(GLfloat); for (slice = 0; slice < depth; slice++) { if (gl_target == GL_TEXTURE_1D_ARRAY) { /* 1D array textures. * We need to convert gallium coords to GL coords. */ void *dest = _mesa_image_address3d(&ctx->Pack, pixels, width, depth, format, type, 0, slice, 0); /* get float[4] rgba row from surface */ pipe_get_tile_rgba_format(tex_xfer, map, 0, 0, width, 1, dst_format, rgba); _mesa_format_convert(dest, dstMesaFormat, dstStride, rgba, RGBA32_FLOAT, srcStride, width, 1, NULL); } else { for (row = 0; row < height; row++) { void *dest = _mesa_image_address3d(&ctx->Pack, pixels, width, height, format, type, slice, row, 0); /* get float[4] rgba row from surface */ pipe_get_tile_rgba_format(tex_xfer, map, 0, row, width, 1, dst_format, rgba); _mesa_format_convert(dest, dstMesaFormat, dstStride, rgba, RGBA32_FLOAT, srcStride, width, 1, NULL); } } map += tex_xfer->layer_stride; } free(rgba); } done = TRUE; end: if (map) pipe_transfer_unmap(pipe, tex_xfer); _mesa_unmap_pbo_dest(ctx, &ctx->Pack); pipe_resource_reference(&dst, NULL); fallback: if (!done) { _mesa_GetTexSubImage_sw(ctx, xoffset, yoffset, zoffset, width, height, depth, format, type, pixels, texImage); } } /** * Do a CopyTexSubImage operation using a read transfer from the source, * a write transfer to the destination and get_tile()/put_tile() to access * the pixels/texels. * * Note: srcY=0=TOP of renderbuffer */ static void fallback_copy_texsubimage(struct gl_context *ctx, struct st_renderbuffer *strb, struct st_texture_image *stImage, GLenum baseFormat, GLint destX, GLint destY, GLint slice, GLint srcX, GLint srcY, GLsizei width, GLsizei height) { struct st_context *st = st_context(ctx); struct pipe_context *pipe = st->pipe; struct pipe_transfer *src_trans; GLubyte *texDest; enum pipe_transfer_usage transfer_usage; void *map; unsigned dst_width = width; unsigned dst_height = height; unsigned dst_depth = 1; struct pipe_transfer *transfer; if (ST_DEBUG & DEBUG_FALLBACK) debug_printf("%s: fallback processing\n", __func__); if (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP) { srcY = strb->Base.Height - srcY - height; } map = pipe_transfer_map(pipe, strb->texture, strb->surface->u.tex.level, strb->surface->u.tex.first_layer, PIPE_TRANSFER_READ, srcX, srcY, width, height, &src_trans); if ((baseFormat == GL_DEPTH_COMPONENT || baseFormat == GL_DEPTH_STENCIL) && util_format_is_depth_and_stencil(stImage->pt->format)) transfer_usage = PIPE_TRANSFER_READ_WRITE; else transfer_usage = PIPE_TRANSFER_WRITE; texDest = st_texture_image_map(st, stImage, transfer_usage, destX, destY, slice, dst_width, dst_height, dst_depth, &transfer); if (baseFormat == GL_DEPTH_COMPONENT || baseFormat == GL_DEPTH_STENCIL) { const GLboolean scaleOrBias = (ctx->Pixel.DepthScale != 1.0F || ctx->Pixel.DepthBias != 0.0F); GLint row, yStep; uint *data; /* determine bottom-to-top vs. top-to-bottom order for src buffer */ if (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP) { srcY = height - 1; yStep = -1; } else { srcY = 0; yStep = 1; } data = malloc(width * sizeof(uint)); if (data) { /* To avoid a large temp memory allocation, do copy row by row */ for (row = 0; row < height; row++, srcY += yStep) { pipe_get_tile_z(src_trans, map, 0, srcY, width, 1, data); if (scaleOrBias) { _mesa_scale_and_bias_depth_uint(ctx, width, data); } if (stImage->pt->target == PIPE_TEXTURE_1D_ARRAY) { pipe_put_tile_z(transfer, texDest + row*transfer->layer_stride, 0, 0, width, 1, data); } else { pipe_put_tile_z(transfer, texDest, 0, row, width, 1, data); } } } else { _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyTexSubImage()"); } free(data); } else { /* RGBA format */ GLfloat *tempSrc = malloc(width * height * 4 * sizeof(GLfloat)); if (tempSrc && texDest) { const GLint dims = 2; GLint dstRowStride; struct gl_texture_image *texImage = &stImage->base; struct gl_pixelstore_attrib unpack = ctx->DefaultPacking; if (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP) { unpack.Invert = GL_TRUE; } if (stImage->pt->target == PIPE_TEXTURE_1D_ARRAY) { dstRowStride = transfer->layer_stride; } else { dstRowStride = transfer->stride; } /* get float/RGBA image from framebuffer */ /* XXX this usually involves a lot of int/float conversion. * try to avoid that someday. */ pipe_get_tile_rgba_format(src_trans, map, 0, 0, width, height, util_format_linear(strb->texture->format), tempSrc); /* Store into texture memory. * Note that this does some special things such as pixel transfer * ops and format conversion. In particular, if the dest tex format * is actually RGBA but the user created the texture as GL_RGB we * need to fill-in/override the alpha channel with 1.0. */ _mesa_texstore(ctx, dims, texImage->_BaseFormat, texImage->TexFormat, dstRowStride, &texDest, width, height, 1, GL_RGBA, GL_FLOAT, tempSrc, /* src */ &unpack); } else { _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexSubImage"); } free(tempSrc); } st_texture_image_unmap(st, stImage, slice); pipe->transfer_unmap(pipe, src_trans); } /** * Do a CopyTex[Sub]Image1/2/3D() using a hardware (blit) path if possible. * Note that the region to copy has already been clipped so we know we * won't read from outside the source renderbuffer's bounds. * * Note: srcY=0=Bottom of renderbuffer (GL convention) */ static void st_CopyTexSubImage(struct gl_context *ctx, GLuint dims, struct gl_texture_image *texImage, GLint destX, GLint destY, GLint slice, struct gl_renderbuffer *rb, GLint srcX, GLint srcY, GLsizei width, GLsizei height) { struct st_texture_image *stImage = st_texture_image(texImage); struct st_texture_object *stObj = st_texture_object(texImage->TexObject); struct st_renderbuffer *strb = st_renderbuffer(rb); struct st_context *st = st_context(ctx); struct pipe_context *pipe = st->pipe; struct pipe_screen *screen = pipe->screen; struct pipe_blit_info blit; enum pipe_format dst_format; GLboolean do_flip = (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP); unsigned bind; GLint srcY0, srcY1; assert(!_mesa_is_format_etc2(texImage->TexFormat) && texImage->TexFormat != MESA_FORMAT_ETC1_RGB8); if (!strb || !strb->surface || !stImage->pt) { debug_printf("%s: null strb or stImage\n", __func__); return; } if (_mesa_texstore_needs_transfer_ops(ctx, texImage->_BaseFormat, texImage->TexFormat)) { goto fallback; } /* The base internal format must match the mesa format, so make sure * e.g. an RGB internal format is really allocated as RGB and not as RGBA. */ if (texImage->_BaseFormat != _mesa_get_format_base_format(texImage->TexFormat) || rb->_BaseFormat != _mesa_get_format_base_format(rb->Format)) { goto fallback; } /* Choose the destination format to match the TexImage behavior. */ dst_format = util_format_linear(stImage->pt->format); dst_format = util_format_luminance_to_red(dst_format); dst_format = util_format_intensity_to_red(dst_format); /* See if the destination format is supported. */ if (texImage->_BaseFormat == GL_DEPTH_STENCIL || texImage->_BaseFormat == GL_DEPTH_COMPONENT) { bind = PIPE_BIND_DEPTH_STENCIL; } else { bind = PIPE_BIND_RENDER_TARGET; } if (!dst_format || !screen->is_format_supported(screen, dst_format, stImage->pt->target, stImage->pt->nr_samples, bind)) { goto fallback; } /* Y flipping for the main framebuffer. */ if (do_flip) { srcY1 = strb->Base.Height - srcY - height; srcY0 = srcY1 + height; } else { srcY0 = srcY; srcY1 = srcY0 + height; } /* Blit the texture. * This supports flipping, format conversions, and downsampling. */ memset(&blit, 0, sizeof(blit)); blit.src.resource = strb->texture; blit.src.format = util_format_linear(strb->surface->format); blit.src.level = strb->surface->u.tex.level; blit.src.box.x = srcX; blit.src.box.y = srcY0; blit.src.box.z = strb->surface->u.tex.first_layer; blit.src.box.width = width; blit.src.box.height = srcY1 - srcY0; blit.src.box.depth = 1; blit.dst.resource = stImage->pt; blit.dst.format = dst_format; blit.dst.level = stObj->pt != stImage->pt ? 0 : texImage->Level + texImage->TexObject->MinLevel; blit.dst.box.x = destX; blit.dst.box.y = destY; blit.dst.box.z = stImage->base.Face + slice + texImage->TexObject->MinLayer; blit.dst.box.width = width; blit.dst.box.height = height; blit.dst.box.depth = 1; blit.mask = st_get_blit_mask(rb->_BaseFormat, texImage->_BaseFormat); blit.filter = PIPE_TEX_FILTER_NEAREST; pipe->blit(pipe, &blit); return; fallback: /* software fallback */ fallback_copy_texsubimage(ctx, strb, stImage, texImage->_BaseFormat, destX, destY, slice, srcX, srcY, width, height); } /** * Copy image data from stImage into the texture object 'stObj' at level * 'dstLevel'. */ static void copy_image_data_to_texture(struct st_context *st, struct st_texture_object *stObj, GLuint dstLevel, struct st_texture_image *stImage) { /* debug checks */ { const struct gl_texture_image *dstImage = stObj->base.Image[stImage->base.Face][dstLevel]; assert(dstImage); assert(dstImage->Width == stImage->base.Width); assert(dstImage->Height == stImage->base.Height); assert(dstImage->Depth == stImage->base.Depth); } if (stImage->pt) { /* Copy potentially with the blitter: */ GLuint src_level; if (stImage->pt->last_level == 0) src_level = 0; else src_level = stImage->base.Level; assert(src_level <= stImage->pt->last_level); assert(u_minify(stImage->pt->width0, src_level) == stImage->base.Width); assert(stImage->pt->target == PIPE_TEXTURE_1D_ARRAY || u_minify(stImage->pt->height0, src_level) == stImage->base.Height); assert(stImage->pt->target == PIPE_TEXTURE_2D_ARRAY || stImage->pt->target == PIPE_TEXTURE_CUBE_ARRAY || u_minify(stImage->pt->depth0, src_level) == stImage->base.Depth); st_texture_image_copy(st->pipe, stObj->pt, dstLevel, /* dest texture, level */ stImage->pt, src_level, /* src texture, level */ stImage->base.Face); pipe_resource_reference(&stImage->pt, NULL); } pipe_resource_reference(&stImage->pt, stObj->pt); } /** * Called during state validation. When this function is finished, * the texture object should be ready for rendering. * \return GL_TRUE for success, GL_FALSE for failure (out of mem) */ GLboolean st_finalize_texture(struct gl_context *ctx, struct pipe_context *pipe, struct gl_texture_object *tObj) { struct st_context *st = st_context(ctx); struct st_texture_object *stObj = st_texture_object(tObj); const GLuint nr_faces = _mesa_num_tex_faces(stObj->base.Target); GLuint face; const struct st_texture_image *firstImage; enum pipe_format firstImageFormat; GLuint ptWidth, ptHeight, ptDepth, ptLayers, ptNumSamples; if (tObj->Immutable) return GL_TRUE; if (_mesa_is_texture_complete(tObj, &tObj->Sampler)) { /* The texture is complete and we know exactly how many mipmap levels * are present/needed. This is conditional because we may be called * from the st_generate_mipmap() function when the texture object is * incomplete. In that case, we'll have set stObj->lastLevel before * we get here. */ if (stObj->base.Sampler.MinFilter == GL_LINEAR || stObj->base.Sampler.MinFilter == GL_NEAREST) stObj->lastLevel = stObj->base.BaseLevel; else stObj->lastLevel = stObj->base._MaxLevel; } if (tObj->Target == GL_TEXTURE_BUFFER) { struct st_buffer_object *st_obj = st_buffer_object(tObj->BufferObject); if (!st_obj) { pipe_resource_reference(&stObj->pt, NULL); st_texture_release_all_sampler_views(st, stObj); return GL_TRUE; } if (st_obj->buffer != stObj->pt) { pipe_resource_reference(&stObj->pt, st_obj->buffer); st_texture_release_all_sampler_views(st, stObj); stObj->width0 = stObj->pt->width0 / _mesa_get_format_bytes(tObj->_BufferObjectFormat); stObj->height0 = 1; stObj->depth0 = 1; } return GL_TRUE; } firstImage = st_texture_image_const(_mesa_base_tex_image(&stObj->base)); assert(firstImage); /* If both firstImage and stObj point to a texture which can contain * all active images, favour firstImage. Note that because of the * completeness requirement, we know that the image dimensions * will match. */ if (firstImage->pt && firstImage->pt != stObj->pt && (!stObj->pt || firstImage->pt->last_level >= stObj->pt->last_level)) { pipe_resource_reference(&stObj->pt, firstImage->pt); st_texture_release_all_sampler_views(st, stObj); } /* If this texture comes from a window system, there is nothing else to do. */ if (stObj->surface_based) { return GL_TRUE; } /* Find gallium format for the Mesa texture */ firstImageFormat = st_mesa_format_to_pipe_format(st, firstImage->base.TexFormat); /* Find size of level=0 Gallium mipmap image, plus number of texture layers */ { GLuint width, height, depth; if (!guess_base_level_size(stObj->base.Target, firstImage->base.Width2, firstImage->base.Height2, firstImage->base.Depth2, firstImage->base.Level, &width, &height, &depth)) { width = stObj->width0; height = stObj->height0; depth = stObj->depth0; } else { /* The width/height/depth may have been previously reset in * guess_and_alloc_texture. */ stObj->width0 = width; stObj->height0 = height; stObj->depth0 = depth; } /* convert GL dims to Gallium dims */ st_gl_texture_dims_to_pipe_dims(stObj->base.Target, width, height, depth, &ptWidth, &ptHeight, &ptDepth, &ptLayers); ptNumSamples = firstImage->base.NumSamples; } /* If we already have a gallium texture, check that it matches the texture * object's format, target, size, num_levels, etc. */ if (stObj->pt) { if (stObj->pt->target != gl_target_to_pipe(stObj->base.Target) || stObj->pt->format != firstImageFormat || stObj->pt->last_level < stObj->lastLevel || stObj->pt->width0 != ptWidth || stObj->pt->height0 != ptHeight || stObj->pt->depth0 != ptDepth || stObj->pt->nr_samples != ptNumSamples || stObj->pt->array_size != ptLayers) { /* The gallium texture does not match the Mesa texture so delete the * gallium texture now. We'll make a new one below. */ pipe_resource_reference(&stObj->pt, NULL); st_texture_release_all_sampler_views(st, stObj); st->dirty.st |= ST_NEW_FRAMEBUFFER; } } /* May need to create a new gallium texture: */ if (!stObj->pt) { GLuint bindings = default_bindings(st, firstImageFormat); stObj->pt = st_texture_create(st, gl_target_to_pipe(stObj->base.Target), firstImageFormat, stObj->lastLevel, ptWidth, ptHeight, ptDepth, ptLayers, ptNumSamples, bindings); if (!stObj->pt) { _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage"); return GL_FALSE; } } /* Pull in any images not in the object's texture: */ for (face = 0; face < nr_faces; face++) { GLuint level; for (level = stObj->base.BaseLevel; level <= stObj->lastLevel; level++) { struct st_texture_image *stImage = st_texture_image(stObj->base.Image[face][level]); /* Need to import images in main memory or held in other textures. */ if (stImage && stObj->pt != stImage->pt) { GLuint height = stObj->height0; GLuint depth = stObj->depth0; if (stObj->base.Target != GL_TEXTURE_1D_ARRAY) height = u_minify(height, level); if (stObj->base.Target == GL_TEXTURE_3D) depth = u_minify(depth, level); if (level == 0 || (stImage->base.Width == u_minify(stObj->width0, level) && stImage->base.Height == height && stImage->base.Depth == depth)) { /* src image fits expected dest mipmap level size */ copy_image_data_to_texture(st, stObj, level, stImage); } } } } return GL_TRUE; } /** * Called via ctx->Driver.AllocTextureStorage() to allocate texture memory * for a whole mipmap stack. */ static GLboolean st_AllocTextureStorage(struct gl_context *ctx, struct gl_texture_object *texObj, GLsizei levels, GLsizei width, GLsizei height, GLsizei depth) { const GLuint numFaces = _mesa_num_tex_faces(texObj->Target); struct gl_texture_image *texImage = texObj->Image[0][0]; struct st_context *st = st_context(ctx); struct st_texture_object *stObj = st_texture_object(texObj); struct pipe_screen *screen = st->pipe->screen; GLuint ptWidth, ptHeight, ptDepth, ptLayers, bindings; enum pipe_format fmt; GLint level; GLuint num_samples = texImage->NumSamples; assert(levels > 0); /* Save the level=0 dimensions */ stObj->width0 = width; stObj->height0 = height; stObj->depth0 = depth; stObj->lastLevel = levels - 1; fmt = st_mesa_format_to_pipe_format(st, texImage->TexFormat); bindings = default_bindings(st, fmt); /* Raise the sample count if the requested one is unsupported. */ if (num_samples > 1) { boolean found = FALSE; for (; num_samples <= ctx->Const.MaxSamples; num_samples++) { if (screen->is_format_supported(screen, fmt, PIPE_TEXTURE_2D, num_samples, PIPE_BIND_SAMPLER_VIEW)) { /* Update the sample count in gl_texture_image as well. */ texImage->NumSamples = num_samples; found = TRUE; break; } } if (!found) { return GL_FALSE; } } st_gl_texture_dims_to_pipe_dims(texObj->Target, width, height, depth, &ptWidth, &ptHeight, &ptDepth, &ptLayers); stObj->pt = st_texture_create(st, gl_target_to_pipe(texObj->Target), fmt, levels - 1, ptWidth, ptHeight, ptDepth, ptLayers, num_samples, bindings); if (!stObj->pt) return GL_FALSE; /* Set image resource pointers */ for (level = 0; level < levels; level++) { GLuint face; for (face = 0; face < numFaces; face++) { struct st_texture_image *stImage = st_texture_image(texObj->Image[face][level]); pipe_resource_reference(&stImage->pt, stObj->pt); } } return GL_TRUE; } static GLboolean st_TestProxyTexImage(struct gl_context *ctx, GLenum target, GLint level, mesa_format format, GLint width, GLint height, GLint depth, GLint border) { struct st_context *st = st_context(ctx); struct pipe_context *pipe = st->pipe; if (width == 0 || height == 0 || depth == 0) { /* zero-sized images are legal, and always fit! */ return GL_TRUE; } if (pipe->screen->can_create_resource) { /* Ask the gallium driver if the texture is too large */ struct gl_texture_object *texObj = _mesa_get_current_tex_object(ctx, target); struct pipe_resource pt; /* Setup the pipe_resource object */ memset(&pt, 0, sizeof(pt)); pt.target = gl_target_to_pipe(target); pt.format = st_mesa_format_to_pipe_format(st, format); st_gl_texture_dims_to_pipe_dims(target, width, height, depth, &pt.width0, &pt.height0, &pt.depth0, &pt.array_size); if (level == 0 && (texObj->Sampler.MinFilter == GL_LINEAR || texObj->Sampler.MinFilter == GL_NEAREST)) { /* assume just one mipmap level */ pt.last_level = 0; } else { /* assume a full set of mipmaps */ pt.last_level = _mesa_logbase2(MAX3(width, height, depth)); } return pipe->screen->can_create_resource(pipe->screen, &pt); } else { /* Use core Mesa fallback */ return _mesa_test_proxy_teximage(ctx, target, level, format, width, height, depth, border); } } static GLboolean st_TextureView(struct gl_context *ctx, struct gl_texture_object *texObj, struct gl_texture_object *origTexObj) { struct st_texture_object *orig = st_texture_object(origTexObj); struct st_texture_object *tex = st_texture_object(texObj); struct gl_texture_image *image = texObj->Image[0][0]; const int numFaces = _mesa_num_tex_faces(texObj->Target); const int numLevels = texObj->NumLevels; int face; int level; pipe_resource_reference(&tex->pt, orig->pt); /* Set image resource pointers */ for (level = 0; level < numLevels; level++) { for (face = 0; face < numFaces; face++) { struct st_texture_image *stImage = st_texture_image(texObj->Image[face][level]); pipe_resource_reference(&stImage->pt, tex->pt); } } tex->surface_based = GL_TRUE; tex->surface_format = st_mesa_format_to_pipe_format(st_context(ctx), image->TexFormat); tex->width0 = image->Width; tex->height0 = image->Height; tex->depth0 = image->Depth; tex->lastLevel = numLevels - 1; return GL_TRUE; } static void st_ClearTexSubImage(struct gl_context *ctx, struct gl_texture_image *texImage, GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width, GLsizei height, GLsizei depth, const void *clearValue) { static const char zeros[16] = {0}; struct st_texture_image *stImage = st_texture_image(texImage); struct pipe_resource *pt = stImage->pt; struct st_context *st = st_context(ctx); struct pipe_context *pipe = st->pipe; unsigned level = texImage->Level; struct pipe_box box; if (!pt) return; u_box_3d(xoffset, yoffset, zoffset + texImage->Face, width, height, depth, &box); if (texImage->TexObject->Immutable) { level += texImage->TexObject->MinLevel; box.z += texImage->TexObject->MinLayer; } pipe->clear_texture(pipe, pt, level, &box, clearValue ? clearValue : zeros); } void st_init_texture_functions(struct dd_function_table *functions) { functions->ChooseTextureFormat = st_ChooseTextureFormat; functions->QueryInternalFormat = st_QueryInternalFormat; functions->TexImage = st_TexImage; functions->TexSubImage = st_TexSubImage; functions->CompressedTexSubImage = st_CompressedTexSubImage; functions->CopyTexSubImage = st_CopyTexSubImage; functions->GenerateMipmap = st_generate_mipmap; functions->GetTexSubImage = st_GetTexSubImage; /* compressed texture functions */ functions->CompressedTexImage = st_CompressedTexImage; functions->GetCompressedTexSubImage = _mesa_GetCompressedTexSubImage_sw; functions->NewTextureObject = st_NewTextureObject; functions->NewTextureImage = st_NewTextureImage; functions->DeleteTextureImage = st_DeleteTextureImage; functions->DeleteTexture = st_DeleteTextureObject; functions->AllocTextureImageBuffer = st_AllocTextureImageBuffer; functions->FreeTextureImageBuffer = st_FreeTextureImageBuffer; functions->MapTextureImage = st_MapTextureImage; functions->UnmapTextureImage = st_UnmapTextureImage; /* XXX Temporary until we can query pipe's texture sizes */ functions->TestProxyTexImage = st_TestProxyTexImage; functions->AllocTextureStorage = st_AllocTextureStorage; functions->TextureView = st_TextureView; functions->ClearTexSubImage = st_ClearTexSubImage; }