+++ /dev/null
-/**************************************************************************
- *
- * 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"
-#ifndef I915
-#include "brw_context.h"
-#endif
-
-#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) {
- if (attIndex == BUFFER_STENCIL && irb->mt->stencil_mt)
- return irb->mt->stencil_mt->region;
- else
- 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);
-}
-
-
-/**
- * Round up the requested multisample count to the next supported sample size.
- */
-unsigned
-intel_quantize_num_samples(struct intel_screen *intel, unsigned num_samples)
-{
- switch (intel->gen) {
- case 6:
- /* Gen6 supports only 4x multisampling. */
- if (num_samples > 0)
- return 4;
- else
- return 0;
- case 7:
- /* Gen7 supports 4x and 8x multisampling. */
- if (num_samples > 4)
- return 8;
- else if (num_samples > 0)
- return 4;
- else
- return 0;
- return 0;
- default:
- /* MSAA unsupported. */
- return 0;
- }
-}
-
-
-/**
- * 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_screen *screen = intel->intelScreen;
- struct intel_renderbuffer *irb = intel_renderbuffer(rb);
- rb->NumSamples = intel_quantize_num_samples(screen, rb->NumSamples);
-
- 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. */
- if (intel->has_separate_stencil) {
- rb->Format = MESA_FORMAT_S8;
- } else {
- assert(!intel->must_use_separate_stencil);
- 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,
- rb->NumSamples);
- 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.
- *
- * \param num_samples must be quantized.
- */
-struct intel_renderbuffer *
-intel_create_renderbuffer(gl_format format, unsigned num_samples)
-{
- 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;
- rb->NumSamples = num_samples;
-
- /* 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.
- *
- * \param num_samples must be quantized.
- */
-struct intel_renderbuffer *
-intel_create_private_renderbuffer(gl_format format, unsigned num_samples)
-{
- struct intel_renderbuffer *irb;
-
- irb = intel_create_renderbuffer(format, num_samples);
- 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->Depth = image->Depth;
-
- rb->AllocStorage = intel_nop_alloc_storage;
-
- intel_miptree_check_level_layer(mt, level, layer);
- irb->mt_level = level;
-
- switch (mt->msaa_layout) {
- case INTEL_MSAA_LAYOUT_UMS:
- case INTEL_MSAA_LAYOUT_CMS:
- irb->mt_layer = layer * mt->num_samples;
- break;
-
- default:
- irb->mt_layer = layer;
- }
-
- intel_miptree_reference(&irb->mt, mt);
-
- intel_renderbuffer_set_draw_offset(irb);
-
- if (mt->hiz_mt == NULL &&
- intel->vtbl.is_hiz_depth_format(intel, rb->Format)) {
- intel_miptree_alloc_hiz(intel, mt);
- if (!mt->hiz_mt)
- return false;
- }
-
- 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 (stencil_mt->stencil_mt)
- stencil_mt = stencil_mt->stencil_mt;
- }
-
- if (depth_mt && stencil_mt) {
- if (depth_mt == stencil_mt) {
- /* For true packed depth/stencil (not faked on prefers-separate-stencil
- * hardware) we need to be sure they're the same level/layer, since
- * we'll be emitting a single packet describing the packed setup.
- */
- 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 {
- if (!intel->has_separate_stencil) {
- fbo_incomplete(fb, "FBO incomplete: separate stencil "
- "unsupported\n");
- }
- if (stencil_mt->format != MESA_FORMAT_S8) {
- fbo_incomplete(fb, "FBO incomplete: separate stencil is %s "
- "instead of S8\n",
- _mesa_get_format_name(stencil_mt->format));
- }
- if (intel->gen < 7 && !intel_renderbuffer_has_hiz(depthRb)) {
- /* Before Gen7, separate depth and stencil buffers can be used
- * only if HiZ is enabled. From the Sandybridge PRM, Volume 2,
- * Part 1, Bit 3DSTATE_DEPTH_BUFFER.SeparateStencilBufferEnable:
- * [DevSNB]: This field must be set to the same value (enabled
- * or disabled) as Hierarchical Depth Buffer Enable.
- */
- fbo_incomplete(fb, "FBO incomplete: separate stencil "
- "without HiZ\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)
-{
-#ifndef I915
- mask = brw_blorp_framebuffer(intel_context(ctx),
- srcX0, srcY0, srcX1, srcY1,
- dstX0, dstY0, dstX1, dstY1,
- mask, filter);
- if (mask == 0x0)
- return;
-#endif
-
- /* 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);
-}
-
-/**
- * This is a no-op except on multisample buffers shared with DRI2.
- */
-void
-intel_renderbuffer_set_needs_downsample(struct intel_renderbuffer *irb)
-{
- if (irb->mt && irb->mt->singlesample_mt)
- irb->mt->need_downsample = true;
-}
-
-/**
- * Does the renderbuffer have hiz enabled?
- */
-bool
-intel_renderbuffer_has_hiz(struct intel_renderbuffer *irb)
-{
- return intel_miptree_slice_has_hiz(irb->mt, irb->mt_level, irb->mt_layer);
-}
-
-void
-intel_renderbuffer_set_needs_hiz_resolve(struct intel_renderbuffer *irb)
-{
- if (irb->mt) {
- intel_miptree_slice_set_needs_hiz_resolve(irb->mt,
- irb->mt_level,
- irb->mt_layer);
- }
-}
-
-void
-intel_renderbuffer_set_needs_depth_resolve(struct intel_renderbuffer *irb)
-{
- if (irb->mt) {
- intel_miptree_slice_set_needs_depth_resolve(irb->mt,
- irb->mt_level,
- irb->mt_layer);
- }
-}
-
-bool
-intel_renderbuffer_resolve_hiz(struct intel_context *intel,
- struct intel_renderbuffer *irb)
-{
- if (irb->mt)
- return intel_miptree_slice_resolve_hiz(intel,
- irb->mt,
- irb->mt_level,
- irb->mt_layer);
-
- return false;
-}
-
-bool
-intel_renderbuffer_resolve_depth(struct intel_context *intel,
- struct intel_renderbuffer *irb)
-{
- if (irb->mt)
- return intel_miptree_slice_resolve_depth(intel,
- irb->mt,
- irb->mt_level,
- irb->mt_layer);
-
- return false;
-}
-
-void
-intel_renderbuffer_move_to_temp(struct intel_context *intel,
- struct intel_renderbuffer *irb,
- bool invalidate)
-{
- struct gl_renderbuffer *rb =&irb->Base.Base;
- struct intel_texture_image *intel_image = intel_texture_image(rb->TexImage);
- struct intel_mipmap_tree *new_mt;
- int width, height, depth;
-
- intel_miptree_get_dimensions_for_image(rb->TexImage, &width, &height, &depth);
-
- new_mt = intel_miptree_create(intel, rb->TexImage->TexObject->Target,
- intel_image->base.Base.TexFormat,
- intel_image->base.Base.Level,
- intel_image->base.Base.Level,
- width, height, depth,
- true,
- irb->mt->num_samples,
- INTEL_MIPTREE_TILING_ANY);
-
- if (intel->vtbl.is_hiz_depth_format(intel, new_mt->format)) {
- intel_miptree_alloc_hiz(intel, new_mt);
- }
-
- intel_miptree_copy_teximage(intel, intel_image, new_mt, invalidate);
-
- intel_miptree_reference(&irb->mt, intel_image->mt);
- intel_renderbuffer_set_draw_offset(irb);
- intel_miptree_release(&new_mt);
-}
-
-/**
- * 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;
-}
projects / mesa.git / blobdiff