/************************************************************************** * * Copyright 2006 Tungsten Graphics, Inc., Cedar Park, Texas. * All Rights Reserved. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the * "Software"), to deal in the Software without restriction, including * without limitation the rights to use, copy, modify, merge, publish, * distribute, sub license, and/or sell copies of the Software, and to * permit persons to whom the Software is furnished to do so, subject to * the following conditions: * * The above copyright notice and this permission notice (including the * next paragraph) shall be included in all copies or substantial portions * of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. * **************************************************************************/ #include "main/enums.h" #include "main/imports.h" #include "main/macros.h" #include "main/mtypes.h" #include "main/fbobject.h" #include "main/framebuffer.h" #include "main/renderbuffer.h" #include "main/context.h" #include "main/teximage.h" #include "main/image.h" #include "swrast/swrast.h" #include "drivers/common/meta.h" #include "intel_context.h" #include "intel_batchbuffer.h" #include "intel_buffers.h" #include "intel_blit.h" #include "intel_fbo.h" #include "intel_mipmap_tree.h" #include "intel_regions.h" #include "intel_tex.h" #define FILE_DEBUG_FLAG DEBUG_FBO static struct gl_renderbuffer * intel_new_renderbuffer(struct gl_context * ctx, GLuint name); struct intel_region* intel_get_rb_region(struct gl_framebuffer *fb, GLuint attIndex) { struct intel_renderbuffer *irb = intel_get_renderbuffer(fb, attIndex); if (irb && irb->mt) return irb->mt->region; else return NULL; } /** * Create a new framebuffer object. */ static struct gl_framebuffer * intel_new_framebuffer(struct gl_context * ctx, GLuint name) { /* Only drawable state in intel_framebuffer at this time, just use Mesa's * class */ return _mesa_new_framebuffer(ctx, name); } /** Called by gl_renderbuffer::Delete() */ static void intel_delete_renderbuffer(struct gl_context *ctx, struct gl_renderbuffer *rb) { struct intel_renderbuffer *irb = intel_renderbuffer(rb); ASSERT(irb); intel_miptree_release(&irb->mt); _mesa_delete_renderbuffer(ctx, rb); } /** * \see dd_function_table::MapRenderbuffer */ static void intel_map_renderbuffer(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint x, GLuint y, GLuint w, GLuint h, GLbitfield mode, GLubyte **out_map, GLint *out_stride) { struct intel_context *intel = intel_context(ctx); struct swrast_renderbuffer *srb = (struct swrast_renderbuffer *)rb; struct intel_renderbuffer *irb = intel_renderbuffer(rb); void *map; int stride; if (srb->Buffer) { /* this is a malloc'd renderbuffer (accum buffer), not an irb */ GLint bpp = _mesa_get_format_bytes(rb->Format); GLint rowStride = srb->RowStride; *out_map = (GLubyte *) srb->Buffer + y * rowStride + x * bpp; *out_stride = rowStride; return; } intel_prepare_render(intel); /* For a window-system renderbuffer, we need to flip the mapping we receive * upside-down. So we need to ask for a rectangle on flipped vertically, and * we then return a pointer to the bottom of it with a negative stride. */ if (rb->Name == 0) { y = rb->Height - y - h; } intel_miptree_map(intel, irb->mt, irb->mt_level, irb->mt_layer, x, y, w, h, mode, &map, &stride); if (rb->Name == 0) { map += (h - 1) * stride; stride = -stride; } DBG("%s: rb %d (%s) mt mapped: (%d, %d) (%dx%d) -> %p/%d\n", __FUNCTION__, rb->Name, _mesa_get_format_name(rb->Format), x, y, w, h, map, stride); *out_map = map; *out_stride = stride; } /** * \see dd_function_table::UnmapRenderbuffer */ static void intel_unmap_renderbuffer(struct gl_context *ctx, struct gl_renderbuffer *rb) { struct intel_context *intel = intel_context(ctx); struct swrast_renderbuffer *srb = (struct swrast_renderbuffer *)rb; struct intel_renderbuffer *irb = intel_renderbuffer(rb); DBG("%s: rb %d (%s)\n", __FUNCTION__, rb->Name, _mesa_get_format_name(rb->Format)); if (srb->Buffer) { /* this is a malloc'd renderbuffer (accum buffer) */ /* nothing to do */ return; } intel_miptree_unmap(intel, irb->mt, irb->mt_level, irb->mt_layer); } /** * Called via glRenderbufferStorageEXT() to set the format and allocate * storage for a user-created renderbuffer. */ static GLboolean intel_alloc_renderbuffer_storage(struct gl_context * ctx, struct gl_renderbuffer *rb, GLenum internalFormat, GLuint width, GLuint height) { struct intel_context *intel = intel_context(ctx); struct intel_renderbuffer *irb = intel_renderbuffer(rb); switch (internalFormat) { default: /* Use the same format-choice logic as for textures. * Renderbuffers aren't any different from textures for us, * except they're less useful because you can't texture with * them. */ rb->Format = intel->ctx.Driver.ChooseTextureFormat(ctx, GL_TEXTURE_2D, internalFormat, GL_NONE, GL_NONE); break; case GL_STENCIL_INDEX: case GL_STENCIL_INDEX1_EXT: case GL_STENCIL_INDEX4_EXT: case GL_STENCIL_INDEX8_EXT: case GL_STENCIL_INDEX16_EXT: /* These aren't actual texture formats, so force them here. */ rb->Format = MESA_FORMAT_S8_Z24; break; } rb->Width = width; rb->Height = height; rb->_BaseFormat = _mesa_base_fbo_format(ctx, internalFormat); intel_miptree_release(&irb->mt); DBG("%s: %s: %s (%dx%d)\n", __FUNCTION__, _mesa_lookup_enum_by_nr(internalFormat), _mesa_get_format_name(rb->Format), width, height); if (width == 0 || height == 0) return true; irb->mt = intel_miptree_create_for_renderbuffer(intel, rb->Format, width, height); if (!irb->mt) return false; return true; } static void intel_image_target_renderbuffer_storage(struct gl_context *ctx, struct gl_renderbuffer *rb, void *image_handle) { struct intel_context *intel = intel_context(ctx); struct intel_renderbuffer *irb; __DRIscreen *screen; __DRIimage *image; screen = intel->intelScreen->driScrnPriv; image = screen->dri2.image->lookupEGLImage(screen, image_handle, screen->loaderPrivate); if (image == NULL) return; /* __DRIimage is opaque to the core so it has to be checked here */ switch (image->format) { case MESA_FORMAT_RGBA8888_REV: _mesa_error(&intel->ctx, GL_INVALID_OPERATION, "glEGLImageTargetRenderbufferStorage(unsupported image format"); return; break; default: break; } irb = intel_renderbuffer(rb); intel_miptree_release(&irb->mt); irb->mt = intel_miptree_create_for_bo(intel, image->region->bo, image->format, image->offset, image->region->width, image->region->height, image->region->pitch, image->region->tiling); if (!irb->mt) return; rb->InternalFormat = image->internal_format; rb->Width = image->region->width; rb->Height = image->region->height; rb->Format = image->format; rb->_BaseFormat = _mesa_base_fbo_format(&intel->ctx, image->internal_format); rb->NeedsFinishRenderTexture = true; } /** * Called by _mesa_resize_framebuffer() for each hardware renderbuffer when a * window system framebuffer is resized. * * Any actual buffer reallocations for hardware renderbuffers (which would * have triggered _mesa_resize_framebuffer()) were done by * intel_process_dri2_buffer(). */ static GLboolean intel_alloc_window_storage(struct gl_context * ctx, struct gl_renderbuffer *rb, GLenum internalFormat, GLuint width, GLuint height) { ASSERT(rb->Name == 0); rb->Width = width; rb->Height = height; rb->InternalFormat = internalFormat; return true; } /** Dummy function for gl_renderbuffer::AllocStorage() */ static GLboolean intel_nop_alloc_storage(struct gl_context * ctx, struct gl_renderbuffer *rb, GLenum internalFormat, GLuint width, GLuint height) { _mesa_problem(ctx, "intel_op_alloc_storage should never be called."); return false; } /** * Create a new intel_renderbuffer which corresponds to an on-screen window, * not a user-created renderbuffer. */ struct intel_renderbuffer * intel_create_renderbuffer(gl_format format) { struct intel_renderbuffer *irb; struct gl_renderbuffer *rb; GET_CURRENT_CONTEXT(ctx); irb = CALLOC_STRUCT(intel_renderbuffer); if (!irb) { _mesa_error(ctx, GL_OUT_OF_MEMORY, "creating renderbuffer"); return NULL; } rb = &irb->Base.Base; _mesa_init_renderbuffer(rb, 0); rb->ClassID = INTEL_RB_CLASS; rb->_BaseFormat = _mesa_get_format_base_format(format); rb->Format = format; rb->InternalFormat = rb->_BaseFormat; /* intel-specific methods */ rb->Delete = intel_delete_renderbuffer; rb->AllocStorage = intel_alloc_window_storage; return irb; } /** * Private window-system buffers (as opposed to ones shared with the display * server created with intel_create_renderbuffer()) are most similar in their * handling to user-created renderbuffers, but they have a resize handler that * may be called at intel_update_renderbuffers() time. */ struct intel_renderbuffer * intel_create_private_renderbuffer(gl_format format) { struct intel_renderbuffer *irb; irb = intel_create_renderbuffer(format); irb->Base.Base.AllocStorage = intel_alloc_renderbuffer_storage; return irb; } /** * Create a new renderbuffer object. * Typically called via glBindRenderbufferEXT(). */ static struct gl_renderbuffer * intel_new_renderbuffer(struct gl_context * ctx, GLuint name) { /*struct intel_context *intel = intel_context(ctx); */ struct intel_renderbuffer *irb; struct gl_renderbuffer *rb; irb = CALLOC_STRUCT(intel_renderbuffer); if (!irb) { _mesa_error(ctx, GL_OUT_OF_MEMORY, "creating renderbuffer"); return NULL; } rb = &irb->Base.Base; _mesa_init_renderbuffer(rb, name); rb->ClassID = INTEL_RB_CLASS; /* intel-specific methods */ rb->Delete = intel_delete_renderbuffer; rb->AllocStorage = intel_alloc_renderbuffer_storage; /* span routines set in alloc_storage function */ return rb; } /** * Called via glBindFramebufferEXT(). */ static void intel_bind_framebuffer(struct gl_context * ctx, GLenum target, struct gl_framebuffer *fb, struct gl_framebuffer *fbread) { if (target == GL_FRAMEBUFFER_EXT || target == GL_DRAW_FRAMEBUFFER_EXT) { intel_draw_buffer(ctx); } else { /* don't need to do anything if target == GL_READ_FRAMEBUFFER_EXT */ } } /** * Called via glFramebufferRenderbufferEXT(). */ static void intel_framebuffer_renderbuffer(struct gl_context * ctx, struct gl_framebuffer *fb, GLenum attachment, struct gl_renderbuffer *rb) { DBG("Intel FramebufferRenderbuffer %u %u\n", fb->Name, rb ? rb->Name : 0); _mesa_framebuffer_renderbuffer(ctx, fb, attachment, rb); intel_draw_buffer(ctx); } static bool intel_renderbuffer_update_wrapper(struct intel_context *intel, struct intel_renderbuffer *irb, struct gl_texture_image *image, uint32_t layer) { struct gl_renderbuffer *rb = &irb->Base.Base; struct intel_texture_image *intel_image = intel_texture_image(image); struct intel_mipmap_tree *mt = intel_image->mt; int level = image->Level; rb->AllocStorage = intel_nop_alloc_storage; intel_miptree_check_level_layer(mt, level, layer); irb->mt_level = level; irb->mt_layer = layer; intel_miptree_reference(&irb->mt, mt); intel_renderbuffer_set_draw_offset(irb); return true; } void intel_renderbuffer_set_draw_offset(struct intel_renderbuffer *irb) { unsigned int dst_x, dst_y; /* compute offset of the particular 2D image within the texture region */ intel_miptree_get_image_offset(irb->mt, irb->mt_level, irb->mt_layer, &dst_x, &dst_y); irb->draw_x = dst_x; irb->draw_y = dst_y; } /** * Called by glFramebufferTexture[123]DEXT() (and other places) to * prepare for rendering into texture memory. This might be called * many times to choose different texture levels, cube faces, etc * before intel_finish_render_texture() is ever called. */ static void intel_render_texture(struct gl_context * ctx, struct gl_framebuffer *fb, struct gl_renderbuffer_attachment *att) { struct intel_context *intel = intel_context(ctx); struct gl_renderbuffer *rb = att->Renderbuffer; struct intel_renderbuffer *irb = intel_renderbuffer(rb); struct gl_texture_image *image = rb->TexImage; struct intel_texture_image *intel_image = intel_texture_image(image); struct intel_mipmap_tree *mt = intel_image->mt; int layer; (void) fb; if (att->CubeMapFace > 0) { assert(att->Zoffset == 0); layer = att->CubeMapFace; } else { layer = att->Zoffset; } if (!intel_image->mt) { /* Fallback on drawing to a texture that doesn't have a miptree * (has a border, width/height 0, etc.) */ _swrast_render_texture(ctx, fb, att); return; } intel_miptree_check_level_layer(mt, att->TextureLevel, layer); if (!intel_renderbuffer_update_wrapper(intel, irb, image, layer)) { _swrast_render_texture(ctx, fb, att); return; } DBG("Begin render %s texture tex=%u w=%d h=%d d=%d refcount=%d\n", _mesa_get_format_name(image->TexFormat), att->Texture->Name, image->Width, image->Height, image->Depth, rb->RefCount); /* update drawing region, etc */ intel_draw_buffer(ctx); } /** * Called by Mesa when rendering to a texture is done. */ static void intel_finish_render_texture(struct gl_context * ctx, struct gl_renderbuffer *rb) { struct intel_context *intel = intel_context(ctx); DBG("Finish render %s texture\n", _mesa_get_format_name(rb->Format)); /* Since we've (probably) rendered to the texture and will (likely) use * it in the texture domain later on in this batchbuffer, flush the * batch. Once again, we wish for a domain tracker in libdrm to cover * usage inside of a batchbuffer like GEM does in the kernel. */ intel_batchbuffer_emit_mi_flush(intel); } #define fbo_incomplete(fb, ...) do { \ static GLuint msg_id = 0; \ if (unlikely(ctx->Const.ContextFlags & GL_CONTEXT_FLAG_DEBUG_BIT)) { \ _mesa_gl_debug(ctx, &msg_id, \ MESA_DEBUG_TYPE_OTHER, \ MESA_DEBUG_SEVERITY_MEDIUM, \ __VA_ARGS__); \ } \ DBG(__VA_ARGS__); \ fb->_Status = GL_FRAMEBUFFER_UNSUPPORTED; \ } while (0) /** * Do additional "completeness" testing of a framebuffer object. */ static void intel_validate_framebuffer(struct gl_context *ctx, struct gl_framebuffer *fb) { struct intel_context *intel = intel_context(ctx); struct intel_renderbuffer *depthRb = intel_get_renderbuffer(fb, BUFFER_DEPTH); struct intel_renderbuffer *stencilRb = intel_get_renderbuffer(fb, BUFFER_STENCIL); struct intel_mipmap_tree *depth_mt = NULL, *stencil_mt = NULL; int i; DBG("%s() on fb %p (%s)\n", __FUNCTION__, fb, (fb == ctx->DrawBuffer ? "drawbuffer" : (fb == ctx->ReadBuffer ? "readbuffer" : "other buffer"))); if (depthRb) depth_mt = depthRb->mt; if (stencilRb) stencil_mt = stencilRb->mt; if (depth_mt && stencil_mt) { /* Make sure that the depth and stencil buffers are actually the same * slice of the same miptree, since we only support packed * depth/stencil. */ if (depth_mt == stencil_mt) { if (depthRb->mt_level != stencilRb->mt_level || depthRb->mt_layer != stencilRb->mt_layer) { fbo_incomplete(fb, "FBO incomplete: depth image level/layer %d/%d != " "stencil image %d/%d\n", depthRb->mt_level, depthRb->mt_layer, stencilRb->mt_level, stencilRb->mt_layer); } } else { fbo_incomplete(fb, "FBO incomplete: separate stencil unsupported\n"); } } for (i = 0; i < Elements(fb->Attachment); i++) { struct gl_renderbuffer *rb; struct intel_renderbuffer *irb; if (fb->Attachment[i].Type == GL_NONE) continue; /* A supported attachment will have a Renderbuffer set either * from being a Renderbuffer or being a texture that got the * intel_wrap_texture() treatment. */ rb = fb->Attachment[i].Renderbuffer; if (rb == NULL) { fbo_incomplete(fb, "FBO incomplete: attachment without " "renderbuffer\n"); continue; } if (fb->Attachment[i].Type == GL_TEXTURE) { if (rb->TexImage->Border) { fbo_incomplete(fb, "FBO incomplete: texture with border\n"); continue; } } irb = intel_renderbuffer(rb); if (irb == NULL) { fbo_incomplete(fb, "FBO incomplete: software rendering " "renderbuffer\n"); continue; } if (!intel->vtbl.render_target_supported(intel, rb)) { fbo_incomplete(fb, "FBO incomplete: Unsupported HW " "texture/renderbuffer format attached: %s\n", _mesa_get_format_name(intel_rb_format(irb))); } } } /** * Try to do a glBlitFramebuffer using glCopyTexSubImage2D * We can do this when the dst renderbuffer is actually a texture and * there is no scaling, mirroring or scissoring. * * \return new buffer mask indicating the buffers left to blit using the * normal path. */ static GLbitfield intel_blit_framebuffer_with_blitter(struct gl_context *ctx, GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1, GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1, GLbitfield mask, GLenum filter) { struct intel_context *intel = intel_context(ctx); if (mask & GL_COLOR_BUFFER_BIT) { GLint i; const struct gl_framebuffer *drawFb = ctx->DrawBuffer; const struct gl_framebuffer *readFb = ctx->ReadBuffer; struct gl_renderbuffer *src_rb = readFb->_ColorReadBuffer; struct intel_renderbuffer *src_irb = intel_renderbuffer(src_rb); if (!src_irb) { perf_debug("glBlitFramebuffer(): missing src renderbuffer. " "Falling back to software rendering.\n"); return mask; } /* If the source and destination are the same size with no mirroring, * the rectangles are within the size of the texture and there is no * scissor, then we can probably use the blit engine. */ if (!(srcX0 - srcX1 == dstX0 - dstX1 && srcY0 - srcY1 == dstY0 - dstY1 && srcX1 >= srcX0 && srcY1 >= srcY0 && srcX0 >= 0 && srcX1 <= readFb->Width && srcY0 >= 0 && srcY1 <= readFb->Height && dstX0 >= 0 && dstX1 <= drawFb->Width && dstY0 >= 0 && dstY1 <= drawFb->Height && !ctx->Scissor.Enabled)) { perf_debug("glBlitFramebuffer(): non-1:1 blit. " "Falling back to software rendering.\n"); return mask; } /* Blit to all active draw buffers. We don't do any pre-checking, * because we assume that copying to MRTs is rare, and failure midway * through copying is even more rare. Even if it was to occur, it's * safe to let meta start the copy over from scratch, because * glBlitFramebuffer completely overwrites the destination pixels, and * results are undefined if any destination pixels have a dependency on * source pixels. */ for (i = 0; i < ctx->DrawBuffer->_NumColorDrawBuffers; i++) { struct gl_renderbuffer *dst_rb = ctx->DrawBuffer->_ColorDrawBuffers[i]; struct intel_renderbuffer *dst_irb = intel_renderbuffer(dst_rb); if (!dst_irb) { perf_debug("glBlitFramebuffer(): missing dst renderbuffer. " "Falling back to software rendering.\n"); return mask; } gl_format src_format = _mesa_get_srgb_format_linear(src_rb->Format); gl_format dst_format = _mesa_get_srgb_format_linear(dst_rb->Format); if (src_format != dst_format) { perf_debug("glBlitFramebuffer(): unsupported blit from %s to %s. " "Falling back to software rendering.\n", _mesa_get_format_name(src_format), _mesa_get_format_name(dst_format)); return mask; } if (!intel_miptree_blit(intel, src_irb->mt, src_irb->mt_level, src_irb->mt_layer, srcX0, srcY0, src_rb->Name == 0, dst_irb->mt, dst_irb->mt_level, dst_irb->mt_layer, dstX0, dstY0, dst_rb->Name == 0, dstX1 - dstX0, dstY1 - dstY0, GL_COPY)) { perf_debug("glBlitFramebuffer(): unknown blit failure. " "Falling back to software rendering.\n"); return mask; } } mask &= ~GL_COLOR_BUFFER_BIT; } return mask; } static void intel_blit_framebuffer(struct gl_context *ctx, GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1, GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1, GLbitfield mask, GLenum filter) { /* Try using the BLT engine. */ mask = intel_blit_framebuffer_with_blitter(ctx, srcX0, srcY0, srcX1, srcY1, dstX0, dstY0, dstX1, dstY1, mask, filter); if (mask == 0x0) return; _mesa_meta_BlitFramebuffer(ctx, srcX0, srcY0, srcX1, srcY1, dstX0, dstY0, dstX1, dstY1, mask, filter); } /** * Do one-time context initializations related to GL_EXT_framebuffer_object. * Hook in device driver functions. */ void intel_fbo_init(struct intel_context *intel) { intel->ctx.Driver.NewFramebuffer = intel_new_framebuffer; intel->ctx.Driver.NewRenderbuffer = intel_new_renderbuffer; intel->ctx.Driver.MapRenderbuffer = intel_map_renderbuffer; intel->ctx.Driver.UnmapRenderbuffer = intel_unmap_renderbuffer; intel->ctx.Driver.BindFramebuffer = intel_bind_framebuffer; intel->ctx.Driver.FramebufferRenderbuffer = intel_framebuffer_renderbuffer; intel->ctx.Driver.RenderTexture = intel_render_texture; intel->ctx.Driver.FinishRenderTexture = intel_finish_render_texture; intel->ctx.Driver.ValidateFramebuffer = intel_validate_framebuffer; intel->ctx.Driver.BlitFramebuffer = intel_blit_framebuffer; intel->ctx.Driver.EGLImageTargetRenderbufferStorage = intel_image_target_renderbuffer_storage; }