
We sometimes need a rendering context when deleting renderbuffers. Pass it explicitly instead of trying to grab a current context (which might be NULL). The next patch will make use of this. Note: this is a candidate for the stable branches. Reviewed-by: Jose Fonseca <jfonseca@vmware.com>
971 lines
30 KiB
C
971 lines
30 KiB
C
/**************************************************************************
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*
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* Copyright 2006 Tungsten Graphics, Inc., Cedar Park, Texas.
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sub license, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial portions
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* of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
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* IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
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* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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**************************************************************************/
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#include "main/enums.h"
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#include "main/imports.h"
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#include "main/macros.h"
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#include "main/mfeatures.h"
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#include "main/mtypes.h"
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#include "main/fbobject.h"
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#include "main/framebuffer.h"
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#include "main/renderbuffer.h"
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#include "main/context.h"
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#include "main/teximage.h"
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#include "main/image.h"
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#include "swrast/swrast.h"
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#include "drivers/common/meta.h"
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#include "intel_context.h"
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#include "intel_batchbuffer.h"
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#include "intel_buffers.h"
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#include "intel_blit.h"
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#include "intel_fbo.h"
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#include "intel_mipmap_tree.h"
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#include "intel_regions.h"
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#include "intel_tex.h"
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#include "intel_span.h"
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#ifndef I915
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#include "brw_context.h"
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#endif
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#define FILE_DEBUG_FLAG DEBUG_FBO
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static struct gl_renderbuffer *
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intel_new_renderbuffer(struct gl_context * ctx, GLuint name);
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struct intel_region*
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intel_get_rb_region(struct gl_framebuffer *fb, GLuint attIndex)
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{
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struct intel_renderbuffer *irb = intel_get_renderbuffer(fb, attIndex);
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if (irb && irb->mt) {
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if (attIndex == BUFFER_STENCIL && irb->mt->stencil_mt)
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return irb->mt->stencil_mt->region;
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else
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return irb->mt->region;
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} else
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return NULL;
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}
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/**
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* Create a new framebuffer object.
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*/
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static struct gl_framebuffer *
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intel_new_framebuffer(struct gl_context * ctx, GLuint name)
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{
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/* Only drawable state in intel_framebuffer at this time, just use Mesa's
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* class
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*/
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return _mesa_new_framebuffer(ctx, name);
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}
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/** Called by gl_renderbuffer::Delete() */
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static void
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intel_delete_renderbuffer(struct gl_context *ctx, struct gl_renderbuffer *rb)
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{
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struct intel_renderbuffer *irb = intel_renderbuffer(rb);
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ASSERT(irb);
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intel_miptree_release(&irb->mt);
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_mesa_delete_renderbuffer(ctx, rb);
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}
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/**
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* \see dd_function_table::MapRenderbuffer
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*/
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static void
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intel_map_renderbuffer(struct gl_context *ctx,
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struct gl_renderbuffer *rb,
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GLuint x, GLuint y, GLuint w, GLuint h,
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GLbitfield mode,
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GLubyte **out_map,
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GLint *out_stride)
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{
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struct intel_context *intel = intel_context(ctx);
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struct swrast_renderbuffer *srb = (struct swrast_renderbuffer *)rb;
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struct intel_renderbuffer *irb = intel_renderbuffer(rb);
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void *map;
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int stride;
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if (srb->Buffer) {
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/* this is a malloc'd renderbuffer (accum buffer), not an irb */
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GLint bpp = _mesa_get_format_bytes(rb->Format);
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GLint rowStride = srb->RowStride;
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*out_map = (GLubyte *) srb->Buffer + y * rowStride + x * bpp;
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*out_stride = rowStride;
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return;
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}
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/* We sometimes get called with this by our intel_span.c usage. */
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if (!irb->mt) {
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*out_map = NULL;
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*out_stride = 0;
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return;
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}
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/* For a window-system renderbuffer, we need to flip the mapping we receive
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* upside-down. So we need to ask for a rectangle on flipped vertically, and
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* we then return a pointer to the bottom of it with a negative stride.
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*/
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if (rb->Name == 0) {
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y = rb->Height - y - h;
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}
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intel_miptree_map(intel, irb->mt, irb->mt_level, irb->mt_layer,
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x, y, w, h, mode, &map, &stride);
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if (rb->Name == 0) {
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map += (h - 1) * stride;
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stride = -stride;
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}
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DBG("%s: rb %d (%s) mt mapped: (%d, %d) (%dx%d) -> %p/%d\n",
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__FUNCTION__, rb->Name, _mesa_get_format_name(rb->Format),
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x, y, w, h, map, stride);
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*out_map = map;
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*out_stride = stride;
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}
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/**
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* \see dd_function_table::UnmapRenderbuffer
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*/
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static void
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intel_unmap_renderbuffer(struct gl_context *ctx,
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struct gl_renderbuffer *rb)
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{
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struct intel_context *intel = intel_context(ctx);
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struct swrast_renderbuffer *srb = (struct swrast_renderbuffer *)rb;
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struct intel_renderbuffer *irb = intel_renderbuffer(rb);
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DBG("%s: rb %d (%s)\n", __FUNCTION__,
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rb->Name, _mesa_get_format_name(rb->Format));
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if (srb->Buffer) {
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/* this is a malloc'd renderbuffer (accum buffer) */
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/* nothing to do */
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return;
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}
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intel_miptree_unmap(intel, irb->mt, irb->mt_level, irb->mt_layer);
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}
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/**
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* Round up the requested multisample count to the next supported sample size.
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*/
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unsigned
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intel_quantize_num_samples(struct intel_screen *intel, unsigned num_samples)
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{
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switch (intel->gen) {
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case 6:
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/* Gen6 supports only 4x multisampling. */
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if (num_samples > 0)
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return 4;
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else
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return 0;
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case 7:
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/* Gen7 supports 4x and 8x multisampling. */
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if (num_samples > 4)
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return 8;
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else if (num_samples > 0)
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return 4;
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else
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return 0;
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return 0;
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default:
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/* MSAA unsupported. However, a careful reading of
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* EXT_framebuffer_multisample reveals that we need to permit
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* num_samples to be 1 (since num_samples is permitted to be as high as
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* GL_MAX_SAMPLES, and GL_MAX_SAMPLES must be at least 1). Since
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* platforms before Gen6 don't support MSAA, this is safe, because
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* multisampling won't happen anyhow.
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*/
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if (num_samples > 0)
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return 1;
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return 0;
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}
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}
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/**
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* Called via glRenderbufferStorageEXT() to set the format and allocate
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* storage for a user-created renderbuffer.
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*/
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static GLboolean
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intel_alloc_renderbuffer_storage(struct gl_context * ctx, struct gl_renderbuffer *rb,
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GLenum internalFormat,
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GLuint width, GLuint height)
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{
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struct intel_context *intel = intel_context(ctx);
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struct intel_screen *screen = intel->intelScreen;
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struct intel_renderbuffer *irb = intel_renderbuffer(rb);
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rb->NumSamples = intel_quantize_num_samples(screen, rb->NumSamples);
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switch (internalFormat) {
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default:
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/* Use the same format-choice logic as for textures.
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* Renderbuffers aren't any different from textures for us,
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* except they're less useful because you can't texture with
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* them.
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*/
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rb->Format = intel->ctx.Driver.ChooseTextureFormat(ctx, GL_TEXTURE_2D,
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internalFormat,
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GL_NONE, GL_NONE);
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break;
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case GL_STENCIL_INDEX:
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case GL_STENCIL_INDEX1_EXT:
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case GL_STENCIL_INDEX4_EXT:
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case GL_STENCIL_INDEX8_EXT:
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case GL_STENCIL_INDEX16_EXT:
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/* These aren't actual texture formats, so force them here. */
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if (intel->has_separate_stencil) {
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rb->Format = MESA_FORMAT_S8;
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} else {
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assert(!intel->must_use_separate_stencil);
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rb->Format = MESA_FORMAT_S8_Z24;
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}
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break;
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}
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rb->Width = width;
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rb->Height = height;
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rb->_BaseFormat = _mesa_base_fbo_format(ctx, internalFormat);
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intel_miptree_release(&irb->mt);
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DBG("%s: %s: %s (%dx%d)\n", __FUNCTION__,
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_mesa_lookup_enum_by_nr(internalFormat),
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_mesa_get_format_name(rb->Format), width, height);
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if (width == 0 || height == 0)
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return true;
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irb->mt = intel_miptree_create_for_renderbuffer(intel, rb->Format,
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width, height,
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rb->NumSamples);
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if (!irb->mt)
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return false;
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return true;
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}
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static void
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intel_image_target_renderbuffer_storage(struct gl_context *ctx,
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struct gl_renderbuffer *rb,
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void *image_handle)
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{
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struct intel_context *intel = intel_context(ctx);
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struct intel_renderbuffer *irb;
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__DRIscreen *screen;
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__DRIimage *image;
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screen = intel->intelScreen->driScrnPriv;
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image = screen->dri2.image->lookupEGLImage(screen, image_handle,
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screen->loaderPrivate);
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if (image == NULL)
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return;
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/* __DRIimage is opaque to the core so it has to be checked here */
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switch (image->format) {
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case MESA_FORMAT_RGBA8888_REV:
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_mesa_error(&intel->ctx, GL_INVALID_OPERATION,
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"glEGLImageTargetRenderbufferStorage(unsupported image format");
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return;
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break;
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default:
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break;
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}
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irb = intel_renderbuffer(rb);
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intel_miptree_release(&irb->mt);
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irb->mt = intel_miptree_create_for_region(intel,
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GL_TEXTURE_2D,
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image->format,
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image->region);
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if (!irb->mt)
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return;
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rb->InternalFormat = image->internal_format;
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rb->Width = image->region->width;
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rb->Height = image->region->height;
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rb->Format = image->format;
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rb->_BaseFormat = _mesa_base_fbo_format(&intel->ctx,
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image->internal_format);
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}
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/**
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* Called for each hardware renderbuffer when a _window_ is resized.
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* Just update fields.
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* Not used for user-created renderbuffers!
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*/
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static GLboolean
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intel_alloc_window_storage(struct gl_context * ctx, struct gl_renderbuffer *rb,
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GLenum internalFormat, GLuint width, GLuint height)
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{
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ASSERT(rb->Name == 0);
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rb->Width = width;
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rb->Height = height;
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rb->InternalFormat = internalFormat;
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return true;
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}
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|
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static void
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intel_resize_buffers(struct gl_context *ctx, struct gl_framebuffer *fb,
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GLuint width, GLuint height)
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{
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int i;
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_mesa_resize_framebuffer(ctx, fb, width, height);
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fb->Initialized = true; /* XXX remove someday */
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if (_mesa_is_user_fbo(fb)) {
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return;
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}
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|
|
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/* Make sure all window system renderbuffers are up to date */
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for (i = BUFFER_FRONT_LEFT; i <= BUFFER_BACK_RIGHT; i++) {
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struct gl_renderbuffer *rb = fb->Attachment[i].Renderbuffer;
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|
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/* only resize if size is changing */
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if (rb && (rb->Width != width || rb->Height != height)) {
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rb->AllocStorage(ctx, rb, rb->InternalFormat, width, height);
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}
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}
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}
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|
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/** Dummy function for gl_renderbuffer::AllocStorage() */
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static GLboolean
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intel_nop_alloc_storage(struct gl_context * ctx, struct gl_renderbuffer *rb,
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GLenum internalFormat, GLuint width, GLuint height)
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{
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_mesa_problem(ctx, "intel_op_alloc_storage should never be called.");
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return false;
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}
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|
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/**
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* Create a new intel_renderbuffer which corresponds to an on-screen window,
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* not a user-created renderbuffer.
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*
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* \param num_samples must be quantized.
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*/
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struct intel_renderbuffer *
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intel_create_renderbuffer(gl_format format, unsigned num_samples)
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{
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struct intel_renderbuffer *irb;
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struct gl_renderbuffer *rb;
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GET_CURRENT_CONTEXT(ctx);
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irb = CALLOC_STRUCT(intel_renderbuffer);
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if (!irb) {
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_mesa_error(ctx, GL_OUT_OF_MEMORY, "creating renderbuffer");
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return NULL;
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}
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rb = &irb->Base.Base;
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|
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_mesa_init_renderbuffer(rb, 0);
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rb->ClassID = INTEL_RB_CLASS;
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rb->_BaseFormat = _mesa_get_format_base_format(format);
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rb->Format = format;
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rb->InternalFormat = rb->_BaseFormat;
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rb->NumSamples = num_samples;
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|
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/* intel-specific methods */
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rb->Delete = intel_delete_renderbuffer;
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rb->AllocStorage = intel_alloc_window_storage;
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return irb;
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}
|
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|
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/**
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* Private window-system buffers (as opposed to ones shared with the display
|
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* server created with intel_create_renderbuffer()) are most similar in their
|
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* handling to user-created renderbuffers, but they have a resize handler that
|
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* may be called at intel_update_renderbuffers() time.
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*
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* \param num_samples must be quantized.
|
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*/
|
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struct intel_renderbuffer *
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intel_create_private_renderbuffer(gl_format format, unsigned num_samples)
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{
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struct intel_renderbuffer *irb;
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|
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irb = intel_create_renderbuffer(format, num_samples);
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irb->Base.Base.AllocStorage = intel_alloc_renderbuffer_storage;
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|
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return irb;
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}
|
|
|
|
/**
|
|
* Create a new renderbuffer object.
|
|
* Typically called via glBindRenderbufferEXT().
|
|
*/
|
|
static struct gl_renderbuffer *
|
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intel_new_renderbuffer(struct gl_context * ctx, GLuint name)
|
|
{
|
|
/*struct intel_context *intel = intel_context(ctx); */
|
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struct intel_renderbuffer *irb;
|
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struct gl_renderbuffer *rb;
|
|
|
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irb = CALLOC_STRUCT(intel_renderbuffer);
|
|
if (!irb) {
|
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_mesa_error(ctx, GL_OUT_OF_MEMORY, "creating renderbuffer");
|
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return NULL;
|
|
}
|
|
|
|
rb = &irb->Base.Base;
|
|
|
|
_mesa_init_renderbuffer(rb, name);
|
|
rb->ClassID = INTEL_RB_CLASS;
|
|
|
|
/* intel-specific methods */
|
|
rb->Delete = intel_delete_renderbuffer;
|
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rb->AllocStorage = intel_alloc_renderbuffer_storage;
|
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/* span routines set in alloc_storage function */
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|
|
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return rb;
|
|
}
|
|
|
|
|
|
/**
|
|
* Called via glBindFramebufferEXT().
|
|
*/
|
|
static void
|
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intel_bind_framebuffer(struct gl_context * ctx, GLenum target,
|
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struct gl_framebuffer *fb, struct gl_framebuffer *fbread)
|
|
{
|
|
if (target == GL_FRAMEBUFFER_EXT || target == GL_DRAW_FRAMEBUFFER_EXT) {
|
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intel_draw_buffer(ctx);
|
|
}
|
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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);
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|
|
|
_mesa_framebuffer_renderbuffer(ctx, fb, attachment, rb);
|
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intel_draw_buffer(ctx);
|
|
}
|
|
|
|
static bool
|
|
intel_renderbuffer_update_wrapper(struct intel_context *intel,
|
|
struct intel_renderbuffer *irb,
|
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struct gl_texture_image *image,
|
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uint32_t layer)
|
|
{
|
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struct gl_renderbuffer *rb = &irb->Base.Base;
|
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struct intel_texture_image *intel_image = intel_texture_image(image);
|
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struct intel_mipmap_tree *mt = intel_image->mt;
|
|
int level = image->Level;
|
|
|
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rb->Format = image->TexFormat;
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|
rb->InternalFormat = image->InternalFormat;
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rb->_BaseFormat = image->_BaseFormat;
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rb->Width = mt->level[level].width;
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rb->Height = mt->level[level].height;
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|
|
rb->Delete = intel_delete_renderbuffer;
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rb->AllocStorage = intel_nop_alloc_storage;
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|
|
|
intel_miptree_check_level_layer(mt, level, layer);
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irb->mt_level = level;
|
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irb->mt_layer = layer;
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intel_miptree_reference(&irb->mt, mt);
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|
|
|
intel_renderbuffer_set_draw_offset(irb);
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|
|
|
if (mt->hiz_mt == NULL &&
|
|
intel->vtbl.is_hiz_depth_format(intel, rb->Format)) {
|
|
intel_miptree_alloc_hiz(intel, mt, 0 /* num_samples */);
|
|
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;
|
|
}
|
|
|
|
/**
|
|
* Rendering to tiled buffers requires that the base address of the
|
|
* buffer be aligned to a page boundary. We generally render to
|
|
* textures by pointing the surface at the mipmap image level, which
|
|
* may not be aligned to a tile boundary.
|
|
*
|
|
* This function returns an appropriately-aligned base offset
|
|
* according to the tiling restrictions, plus any required x/y offset
|
|
* from there.
|
|
*/
|
|
uint32_t
|
|
intel_renderbuffer_tile_offsets(struct intel_renderbuffer *irb,
|
|
uint32_t *tile_x,
|
|
uint32_t *tile_y)
|
|
{
|
|
struct intel_region *region = irb->mt->region;
|
|
uint32_t mask_x, mask_y;
|
|
|
|
intel_region_get_tile_masks(region, &mask_x, &mask_y, false);
|
|
|
|
*tile_x = irb->draw_x & mask_x;
|
|
*tile_y = irb->draw_y & mask_y;
|
|
return intel_region_get_aligned_offset(region, irb->draw_x & ~mask_x,
|
|
irb->draw_y & ~mask_y, false);
|
|
}
|
|
|
|
/**
|
|
* 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_texture_image *image = _mesa_get_attachment_teximage(att);
|
|
struct intel_renderbuffer *irb = intel_renderbuffer(att->Renderbuffer);
|
|
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.)
|
|
*/
|
|
_mesa_reference_renderbuffer(&att->Renderbuffer, NULL);
|
|
_swrast_render_texture(ctx, fb, att);
|
|
return;
|
|
}
|
|
else if (!irb) {
|
|
intel_miptree_check_level_layer(mt, att->TextureLevel, layer);
|
|
|
|
irb = (struct intel_renderbuffer *)intel_new_renderbuffer(ctx, ~0);
|
|
|
|
if (irb) {
|
|
/* bind the wrapper to the attachment point */
|
|
_mesa_reference_renderbuffer(&att->Renderbuffer, &irb->Base.Base);
|
|
}
|
|
else {
|
|
/* fallback to software rendering */
|
|
_swrast_render_texture(ctx, fb, att);
|
|
return;
|
|
}
|
|
}
|
|
|
|
if (!intel_renderbuffer_update_wrapper(intel, irb, image, layer)) {
|
|
_mesa_reference_renderbuffer(&att->Renderbuffer, NULL);
|
|
_swrast_render_texture(ctx, fb, att);
|
|
return;
|
|
}
|
|
|
|
irb->tex_image = image;
|
|
|
|
DBG("Begin render %s texture tex=%u w=%d h=%d refcount=%d\n",
|
|
_mesa_get_format_name(image->TexFormat),
|
|
att->Texture->Name, image->Width, image->Height,
|
|
irb->Base.Base.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_attachment *att)
|
|
{
|
|
struct intel_context *intel = intel_context(ctx);
|
|
struct gl_texture_object *tex_obj = att->Texture;
|
|
struct gl_texture_image *image =
|
|
tex_obj->Image[att->CubeMapFace][att->TextureLevel];
|
|
struct intel_renderbuffer *irb = intel_renderbuffer(att->Renderbuffer);
|
|
|
|
DBG("Finish render %s texture tex=%u\n",
|
|
_mesa_get_format_name(image->TexFormat), att->Texture->Name);
|
|
|
|
if (irb)
|
|
irb->tex_image = NULL;
|
|
|
|
/* 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);
|
|
}
|
|
|
|
/**
|
|
* 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);
|
|
const struct intel_renderbuffer *depthRb =
|
|
intel_get_renderbuffer(fb, BUFFER_DEPTH);
|
|
const 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) {
|
|
DBG("depth image level/layer %d/%d != stencil image %d/%d\n",
|
|
depthRb->mt_level,
|
|
depthRb->mt_layer,
|
|
stencilRb->mt_level,
|
|
stencilRb->mt_layer);
|
|
fb->_Status = GL_FRAMEBUFFER_UNSUPPORTED_EXT;
|
|
}
|
|
} else {
|
|
if (!intel->has_separate_stencil) {
|
|
DBG("separate stencil unsupported\n");
|
|
fb->_Status = GL_FRAMEBUFFER_UNSUPPORTED_EXT;
|
|
}
|
|
if (stencil_mt->format != MESA_FORMAT_S8) {
|
|
DBG("separate stencil is %s instead of S8\n",
|
|
_mesa_get_format_name(stencil_mt->format));
|
|
fb->_Status = GL_FRAMEBUFFER_UNSUPPORTED_EXT;
|
|
}
|
|
if (intel->gen < 7 && depth_mt->hiz_mt == NULL) {
|
|
/* 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.
|
|
*/
|
|
DBG("separate stencil without HiZ\n");
|
|
fb->_Status = GL_FRAMEBUFFER_UNSUPPORTED;
|
|
}
|
|
}
|
|
}
|
|
|
|
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) {
|
|
DBG("attachment without renderbuffer\n");
|
|
fb->_Status = GL_FRAMEBUFFER_UNSUPPORTED_EXT;
|
|
continue;
|
|
}
|
|
|
|
if (fb->Attachment[i].Type == GL_TEXTURE) {
|
|
const struct gl_texture_image *img =
|
|
_mesa_get_attachment_teximage_const(&fb->Attachment[i]);
|
|
|
|
if (img->Border) {
|
|
DBG("texture with border\n");
|
|
fb->_Status = GL_FRAMEBUFFER_UNSUPPORTED_EXT;
|
|
continue;
|
|
}
|
|
}
|
|
|
|
irb = intel_renderbuffer(rb);
|
|
if (irb == NULL) {
|
|
DBG("software rendering renderbuffer\n");
|
|
fb->_Status = GL_FRAMEBUFFER_UNSUPPORTED_EXT;
|
|
continue;
|
|
}
|
|
|
|
if (!intel->vtbl.render_target_supported(intel, rb)) {
|
|
DBG("Unsupported HW texture/renderbuffer format attached: %s\n",
|
|
_mesa_get_format_name(intel_rb_format(irb)));
|
|
fb->_Status = GL_FRAMEBUFFER_UNSUPPORTED_EXT;
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* 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_copy_tex_sub_image(struct gl_context *ctx,
|
|
GLint srcX0, GLint srcY0,
|
|
GLint srcX1, GLint srcY1,
|
|
GLint dstX0, GLint dstY0,
|
|
GLint dstX1, GLint dstY1,
|
|
GLbitfield mask, GLenum filter)
|
|
{
|
|
if (mask & GL_COLOR_BUFFER_BIT) {
|
|
const struct gl_framebuffer *drawFb = ctx->DrawBuffer;
|
|
const struct gl_framebuffer *readFb = ctx->ReadBuffer;
|
|
const struct gl_renderbuffer_attachment *drawAtt =
|
|
&drawFb->Attachment[drawFb->_ColorDrawBufferIndexes[0]];
|
|
struct intel_renderbuffer *srcRb =
|
|
intel_renderbuffer(readFb->_ColorReadBuffer);
|
|
|
|
/* 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 use
|
|
glCopyTexSubimage2D to implement the blit. This will end
|
|
up as a fast hardware blit on some drivers */
|
|
if (srcRb && drawAtt && drawAtt->Texture &&
|
|
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) {
|
|
const struct gl_texture_object *texObj = drawAtt->Texture;
|
|
const GLuint dstLevel = drawAtt->TextureLevel;
|
|
const GLenum target = texObj->Target;
|
|
|
|
struct gl_texture_image *texImage =
|
|
_mesa_select_tex_image(ctx, texObj, target, dstLevel);
|
|
|
|
if (intel_copy_texsubimage(intel_context(ctx),
|
|
intel_texture_image(texImage),
|
|
dstX0, dstY0,
|
|
srcRb,
|
|
srcX0, srcY0,
|
|
srcX1 - srcX0, /* width */
|
|
srcY1 - srcY0))
|
|
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 faster, glCopyTexSubImage2D approach first which uses the BLT. */
|
|
mask = intel_blit_framebuffer_copy_tex_sub_image(ctx,
|
|
srcX0, srcY0, srcX1, srcY1,
|
|
dstX0, dstY0, dstX1, dstY1,
|
|
mask, filter);
|
|
if (mask == 0x0)
|
|
return;
|
|
|
|
#ifndef I915
|
|
mask = brw_blorp_framebuffer(intel_context(ctx),
|
|
srcX0, srcY0, srcX1, srcY1,
|
|
dstX0, dstY0, dstX1, dstY1,
|
|
mask, filter);
|
|
if (mask == 0x0)
|
|
return;
|
|
#endif
|
|
|
|
_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;
|
|
}
|
|
|
|
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)
|
|
{
|
|
struct intel_texture_image *intel_image =
|
|
intel_texture_image(irb->tex_image);
|
|
struct intel_mipmap_tree *new_mt;
|
|
int width, height, depth;
|
|
|
|
intel_miptree_get_dimensions_for_image(irb->tex_image, &width, &height, &depth);
|
|
|
|
new_mt = intel_miptree_create(intel, irb->tex_image->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,
|
|
irb->mt->msaa_layout);
|
|
|
|
intel_miptree_copy_teximage(intel, intel_image, new_mt);
|
|
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.ResizeBuffers = intel_resize_buffers;
|
|
intel->ctx.Driver.ValidateFramebuffer = intel_validate_framebuffer;
|
|
intel->ctx.Driver.BlitFramebuffer = intel_blit_framebuffer;
|
|
intel->ctx.Driver.EGLImageTargetRenderbufferStorage =
|
|
intel_image_target_renderbuffer_storage;
|
|
}
|