899 lines
27 KiB
C
899 lines
27 KiB
C
/**************************************************************************
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*
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* Copyright 2003 VMware, Inc.
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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 VMWARE 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/glheader.h"
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#include "main/context.h"
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#include "main/extensions.h"
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#include "main/fbobject.h"
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#include "main/framebuffer.h"
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#include "main/points.h"
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#include "main/renderbuffer.h"
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#include "swrast/swrast.h"
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#include "swrast_setup/swrast_setup.h"
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#include "tnl/tnl.h"
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#include "drivers/common/driverfuncs.h"
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#include "drivers/common/meta.h"
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#include "intel_chipset.h"
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#include "intel_buffers.h"
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#include "intel_tex.h"
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#include "intel_batchbuffer.h"
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#include "intel_clear.h"
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#include "intel_extensions.h"
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#include "intel_pixel.h"
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#include "intel_regions.h"
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#include "intel_buffer_objects.h"
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#include "intel_fbo.h"
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#include "intel_bufmgr.h"
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#include "intel_screen.h"
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#include "intel_mipmap_tree.h"
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#include "utils.h"
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#include "util/debug.h"
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#include "util/ralloc.h"
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#include "util/u_memory.h"
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int INTEL_DEBUG = (0);
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const char *const i915_vendor_string = "Intel Open Source Technology Center";
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const char *
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i915_get_renderer_string(unsigned deviceID)
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{
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const char *chipset;
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static char buffer[128];
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switch (deviceID) {
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#undef CHIPSET
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#define CHIPSET(id, symbol, str) case id: chipset = str; break;
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#include "pci_ids/i830_pci_ids.h"
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#include "pci_ids/i915_pci_ids.h"
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default:
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chipset = "Unknown Intel Chipset";
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break;
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}
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(void) driGetRendererString(buffer, chipset, 0);
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return buffer;
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}
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static const GLubyte *
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intelGetString(struct gl_context * ctx, GLenum name)
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{
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const struct intel_context *const intel = intel_context(ctx);
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switch (name) {
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case GL_VENDOR:
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return (GLubyte *) i915_vendor_string;
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case GL_RENDERER:
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return
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(GLubyte *) i915_get_renderer_string(intel->intelScreen->deviceID);
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default:
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return NULL;
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}
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}
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#define flushFront(screen) ((screen)->image.loader ? (screen)->image.loader->flushFrontBuffer : (screen)->dri2.loader->flushFrontBuffer)
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static void
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intel_flush_front(struct gl_context *ctx)
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{
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struct intel_context *intel = intel_context(ctx);
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__DRIcontext *driContext = intel->driContext;
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__DRIdrawable *driDrawable = driContext->driDrawablePriv;
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__DRIscreen *const screen = intel->intelScreen->driScrnPriv;
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if (intel->front_buffer_dirty && _mesa_is_winsys_fbo(ctx->DrawBuffer)) {
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if (flushFront(screen) &&
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driDrawable &&
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driDrawable->loaderPrivate) {
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flushFront(screen)(driDrawable, driDrawable->loaderPrivate);
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/* We set the dirty bit in intel_prepare_render() if we're
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* front buffer rendering once we get there.
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*/
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intel->front_buffer_dirty = false;
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}
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}
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}
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static void
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intel_update_image_buffers(struct intel_context *intel, __DRIdrawable *drawable);
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static unsigned
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intel_bits_per_pixel(const struct intel_renderbuffer *rb)
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{
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return _mesa_get_format_bytes(intel_rb_format(rb)) * 8;
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}
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static void
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intel_query_dri2_buffers(struct intel_context *intel,
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__DRIdrawable *drawable,
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__DRIbuffer **buffers,
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int *count);
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static void
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intel_process_dri2_buffer(struct intel_context *intel,
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__DRIdrawable *drawable,
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__DRIbuffer *buffer,
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struct intel_renderbuffer *rb,
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const char *buffer_name);
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static void
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intel_update_dri2_buffers(struct intel_context *intel, __DRIdrawable *drawable)
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{
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__DRIbuffer *buffers = NULL;
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int i, count;
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const char *region_name;
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struct intel_renderbuffer *rb;
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struct gl_framebuffer *fb = drawable->driverPrivate;
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intel_query_dri2_buffers(intel, drawable, &buffers, &count);
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if (buffers == NULL)
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return;
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for (i = 0; i < count; i++) {
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switch (buffers[i].attachment) {
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case __DRI_BUFFER_FRONT_LEFT:
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rb = intel_get_renderbuffer(fb, BUFFER_FRONT_LEFT);
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region_name = "dri2 front buffer";
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break;
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case __DRI_BUFFER_FAKE_FRONT_LEFT:
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rb = intel_get_renderbuffer(fb, BUFFER_FRONT_LEFT);
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region_name = "dri2 fake front buffer";
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break;
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case __DRI_BUFFER_BACK_LEFT:
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rb = intel_get_renderbuffer(fb, BUFFER_BACK_LEFT);
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region_name = "dri2 back buffer";
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break;
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case __DRI_BUFFER_DEPTH:
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case __DRI_BUFFER_HIZ:
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case __DRI_BUFFER_DEPTH_STENCIL:
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case __DRI_BUFFER_STENCIL:
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case __DRI_BUFFER_ACCUM:
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default:
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fprintf(stderr,
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"unhandled buffer attach event, attachment type %d\n",
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buffers[i].attachment);
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return;
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}
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intel_process_dri2_buffer(intel, drawable, &buffers[i], rb, region_name);
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}
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}
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void
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intel_update_renderbuffers(__DRIcontext *context, __DRIdrawable *drawable)
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{
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struct intel_context *intel = context->driverPrivate;
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__DRIscreen *screen = intel->intelScreen->driScrnPriv;
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/* Set this up front, so that in case our buffers get invalidated
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* while we're getting new buffers, we don't clobber the stamp and
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* thus ignore the invalidate. */
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drawable->lastStamp = drawable->dri2.stamp;
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if (unlikely(INTEL_DEBUG & DEBUG_DRI))
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fprintf(stderr, "enter %s, drawable %p\n", __func__, drawable);
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if (screen->image.loader)
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intel_update_image_buffers(intel, drawable);
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else
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intel_update_dri2_buffers(intel, drawable);
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driUpdateFramebufferSize(&intel->ctx, drawable);
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}
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/**
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* intel_prepare_render should be called anywhere that curent read/drawbuffer
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* state is required.
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*/
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void
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intel_prepare_render(struct intel_context *intel)
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{
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__DRIcontext *driContext = intel->driContext;
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__DRIdrawable *drawable;
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drawable = driContext->driDrawablePriv;
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if (drawable && drawable->dri2.stamp != driContext->dri2.draw_stamp) {
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if (drawable->lastStamp != drawable->dri2.stamp)
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intel_update_renderbuffers(driContext, drawable);
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intel_draw_buffer(&intel->ctx);
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driContext->dri2.draw_stamp = drawable->dri2.stamp;
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}
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drawable = driContext->driReadablePriv;
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if (drawable && drawable->dri2.stamp != driContext->dri2.read_stamp) {
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if (drawable->lastStamp != drawable->dri2.stamp)
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intel_update_renderbuffers(driContext, drawable);
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driContext->dri2.read_stamp = drawable->dri2.stamp;
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}
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/* If we're currently rendering to the front buffer, the rendering
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* that will happen next will probably dirty the front buffer. So
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* mark it as dirty here.
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*/
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if (_mesa_is_front_buffer_drawing(intel->ctx.DrawBuffer))
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intel->front_buffer_dirty = true;
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/* Wait for the swapbuffers before the one we just emitted, so we
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* don't get too many swaps outstanding for apps that are GPU-heavy
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* but not CPU-heavy.
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*
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* We're using intelDRI2Flush (called from the loader before
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* swapbuffer) and glFlush (for front buffer rendering) as the
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* indicator that a frame is done and then throttle when we get
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* here as we prepare to render the next frame. At this point for
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* round trips for swap/copy and getting new buffers are done and
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* we'll spend less time waiting on the GPU.
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*
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* Unfortunately, we don't have a handle to the batch containing
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* the swap, and getting our hands on that doesn't seem worth it,
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* so we just us the first batch we emitted after the last swap.
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*/
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if (intel->need_throttle && intel->first_post_swapbuffers_batch) {
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if (!intel->disable_throttling)
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drm_intel_bo_wait_rendering(intel->first_post_swapbuffers_batch);
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drm_intel_bo_unreference(intel->first_post_swapbuffers_batch);
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intel->first_post_swapbuffers_batch = NULL;
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intel->need_throttle = false;
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}
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}
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static void
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intel_noninvalidate_viewport(struct gl_context *ctx)
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{
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struct intel_context *intel = intel_context(ctx);
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__DRIcontext *driContext = intel->driContext;
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intelCalcViewport(ctx);
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if (_mesa_is_winsys_fbo(ctx->DrawBuffer)) {
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dri2InvalidateDrawable(driContext->driDrawablePriv);
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dri2InvalidateDrawable(driContext->driReadablePriv);
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}
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}
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static void
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intel_viewport(struct gl_context *ctx)
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{
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intelCalcViewport(ctx);
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}
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static const struct debug_control debug_control[] = {
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{ "tex", DEBUG_TEXTURE},
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{ "state", DEBUG_STATE},
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{ "blit", DEBUG_BLIT},
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{ "mip", DEBUG_MIPTREE},
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{ "fall", DEBUG_PERF},
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{ "perf", DEBUG_PERF},
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{ "bat", DEBUG_BATCH},
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{ "pix", DEBUG_PIXEL},
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{ "buf", DEBUG_BUFMGR},
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{ "reg", DEBUG_REGION},
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{ "fbo", DEBUG_FBO},
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{ "fs", DEBUG_WM },
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{ "sync", DEBUG_SYNC},
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{ "dri", DEBUG_DRI },
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{ "stats", DEBUG_STATS },
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{ "wm", DEBUG_WM },
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{ "aub", DEBUG_AUB },
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{ NULL, 0 }
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};
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static void
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intelInvalidateState(struct gl_context * ctx)
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{
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GLuint new_state = ctx->NewState;
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struct intel_context *intel = intel_context(ctx);
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if (ctx->swrast_context)
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_swrast_InvalidateState(ctx, new_state);
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intel->NewGLState |= new_state;
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if (new_state & (_NEW_SCISSOR | _NEW_BUFFERS | _NEW_VIEWPORT))
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_mesa_update_draw_buffer_bounds(ctx, ctx->DrawBuffer);
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if (intel->vtbl.invalidate_state)
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intel->vtbl.invalidate_state( intel, new_state );
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}
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void
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intel_flush_rendering_to_batch(struct gl_context *ctx)
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{
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struct intel_context *intel = intel_context(ctx);
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if (intel->Fallback)
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_swrast_flush(ctx);
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INTEL_FIREVERTICES(intel);
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}
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void
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_intel_flush(struct gl_context *ctx, const char *file, int line)
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{
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struct intel_context *intel = intel_context(ctx);
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intel_flush_rendering_to_batch(ctx);
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if (intel->batch.used)
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_intel_batchbuffer_flush(intel, file, line);
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}
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static void
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intel_glFlush(struct gl_context *ctx, unsigned gallium_flush_flags)
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{
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struct intel_context *intel = intel_context(ctx);
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intel_flush(ctx);
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intel_flush_front(ctx);
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if (_mesa_is_front_buffer_drawing(ctx->DrawBuffer))
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intel->need_throttle = true;
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}
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void
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intelFinish(struct gl_context * ctx)
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{
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struct intel_context *intel = intel_context(ctx);
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intel_flush(ctx);
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intel_flush_front(ctx);
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if (intel->batch.last_bo)
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drm_intel_bo_wait_rendering(intel->batch.last_bo);
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}
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void
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intelInitDriverFunctions(struct dd_function_table *functions)
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{
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_mesa_init_driver_functions(functions);
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_tnl_init_driver_draw_function(functions);
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functions->Flush = intel_glFlush;
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functions->Finish = intelFinish;
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functions->GetString = intelGetString;
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functions->UpdateState = intelInvalidateState;
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intelInitTextureFuncs(functions);
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intelInitTextureImageFuncs(functions);
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intelInitTextureSubImageFuncs(functions);
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intelInitTextureCopyImageFuncs(functions);
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intelInitClearFuncs(functions);
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intelInitBufferFuncs(functions);
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intelInitPixelFuncs(functions);
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intelInitBufferObjectFuncs(functions);
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intel_init_syncobj_functions(functions);
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}
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bool
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intelInitContext(struct intel_context *intel,
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int api,
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unsigned major_version,
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unsigned minor_version,
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uint32_t flags,
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const struct gl_config * mesaVis,
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__DRIcontext * driContextPriv,
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void *sharedContextPrivate,
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struct dd_function_table *functions,
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unsigned *dri_ctx_error)
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{
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struct gl_context *ctx = &intel->ctx;
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struct gl_context *shareCtx = (struct gl_context *) sharedContextPrivate;
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__DRIscreen *sPriv = driContextPriv->driScreenPriv;
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struct intel_screen *intelScreen = sPriv->driverPrivate;
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int bo_reuse_mode;
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/* Can't rely on invalidate events, fall back to glViewport hack */
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if (!driContextPriv->driScreenPriv->dri2.useInvalidate)
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functions->Viewport = intel_noninvalidate_viewport;
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else
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functions->Viewport = intel_viewport;
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intel->intelScreen = intelScreen;
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if (!_mesa_initialize_context(&intel->ctx, api, mesaVis, shareCtx,
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functions)) {
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*dri_ctx_error = __DRI_CTX_ERROR_NO_MEMORY;
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printf("%s: failed to init mesa context\n", __func__);
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return false;
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}
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driContextSetFlags(&intel->ctx, flags);
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driContextPriv->driverPrivate = intel;
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intel->driContext = driContextPriv;
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intel->gen = intelScreen->gen;
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const int devID = intelScreen->deviceID;
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intel->is_945 = IS_945(devID);
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memset(&ctx->TextureFormatSupported,
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0, sizeof(ctx->TextureFormatSupported));
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driParseConfigFiles(&intel->optionCache, &intelScreen->optionCache,
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sPriv->myNum, "i915", NULL, NULL, NULL, 0, NULL, 0);
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intel->maxBatchSize = 4096;
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/* Estimate the size of the mappable aperture into the GTT. There's an
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* ioctl to get the whole GTT size, but not one to get the mappable subset.
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* It turns out it's basically always 256MB, though some ancient hardware
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* was smaller.
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*/
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uint32_t gtt_size = 256 * 1024 * 1024;
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if (intel->gen == 2)
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gtt_size = 128 * 1024 * 1024;
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/* We don't want to map two objects such that a memcpy between them would
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* just fault one mapping in and then the other over and over forever. So
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* we would need to divide the GTT size by 2. Additionally, some GTT is
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* taken up by things like the framebuffer and the ringbuffer and such, so
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* be more conservative.
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*/
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intel->max_gtt_map_object_size = gtt_size / 4;
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intel->bufmgr = intelScreen->bufmgr;
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bo_reuse_mode = driQueryOptioni(&intel->optionCache, "bo_reuse");
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switch (bo_reuse_mode) {
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case DRI_CONF_BO_REUSE_DISABLED:
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break;
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case DRI_CONF_BO_REUSE_ALL:
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intel_bufmgr_gem_enable_reuse(intel->bufmgr);
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break;
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}
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ctx->Const.MinLineWidth = 1.0;
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ctx->Const.MinLineWidthAA = 1.0;
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ctx->Const.MaxLineWidth = 7.0;
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ctx->Const.MaxLineWidthAA = 7.0;
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ctx->Const.LineWidthGranularity = 0.5;
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ctx->Const.MinPointSize = 1.0;
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ctx->Const.MinPointSizeAA = 1.0;
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ctx->Const.MaxPointSize = 255.0;
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ctx->Const.MaxPointSizeAA = 3.0;
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ctx->Const.PointSizeGranularity = 1.0;
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ctx->Const.StripTextureBorder = GL_TRUE;
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/* reinitialize the context point state.
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* It depend on constants in __struct gl_contextRec::Const
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*/
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_mesa_init_point(ctx);
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ctx->Const.MaxRenderbufferSize = 2048;
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|
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_swrast_CreateContext(ctx);
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_vbo_CreateContext(ctx, false);
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if (ctx->swrast_context) {
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_tnl_CreateContext(ctx);
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_swsetup_CreateContext(ctx);
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|
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/* Configure swrast to match hardware characteristics: */
|
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_swrast_allow_pixel_fog(ctx, false);
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_swrast_allow_vertex_fog(ctx, true);
|
|
}
|
|
|
|
_mesa_meta_init(ctx);
|
|
|
|
intel->hw_stipple = 1;
|
|
|
|
intel->RenderIndex = ~0;
|
|
|
|
intelInitExtensions(ctx);
|
|
|
|
INTEL_DEBUG = parse_debug_string(getenv("INTEL_DEBUG"), debug_control);
|
|
if (INTEL_DEBUG & DEBUG_BUFMGR)
|
|
dri_bufmgr_set_debug(intel->bufmgr, true);
|
|
if (INTEL_DEBUG & DEBUG_PERF)
|
|
intel->perf_debug = true;
|
|
|
|
if (INTEL_DEBUG & DEBUG_AUB)
|
|
drm_intel_bufmgr_gem_set_aub_dump(intel->bufmgr, true);
|
|
|
|
intel_batchbuffer_init(intel);
|
|
|
|
intel_fbo_init(intel);
|
|
|
|
intel->prim.primitive = ~0;
|
|
|
|
/* Force all software fallbacks */
|
|
if (getenv("INTEL_NO_RAST")) {
|
|
fprintf(stderr, "disabling 3D rasterization\n");
|
|
intel->no_rast = 1;
|
|
}
|
|
|
|
if (driQueryOptionb(&intel->optionCache, "always_flush_batch")) {
|
|
fprintf(stderr, "flushing batchbuffer before/after each draw call\n");
|
|
intel->always_flush_batch = 1;
|
|
}
|
|
|
|
if (driQueryOptionb(&intel->optionCache, "always_flush_cache")) {
|
|
fprintf(stderr, "flushing GPU caches before/after each draw call\n");
|
|
intel->always_flush_cache = 1;
|
|
}
|
|
|
|
if (driQueryOptionb(&intel->optionCache, "disable_throttling")) {
|
|
fprintf(stderr, "disabling flush throttling\n");
|
|
intel->disable_throttling = 1;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
void
|
|
intelDestroyContext(__DRIcontext * driContextPriv)
|
|
{
|
|
struct intel_context *intel =
|
|
(struct intel_context *) driContextPriv->driverPrivate;
|
|
struct gl_context *ctx = &intel->ctx;
|
|
|
|
assert(intel); /* should never be null */
|
|
if (intel) {
|
|
INTEL_FIREVERTICES(intel);
|
|
|
|
/* Dump a final BMP in case the application doesn't call SwapBuffers */
|
|
if (INTEL_DEBUG & DEBUG_AUB) {
|
|
intel_batchbuffer_flush(intel);
|
|
aub_dump_bmp(&intel->ctx);
|
|
}
|
|
|
|
_mesa_meta_free(&intel->ctx);
|
|
|
|
intel->vtbl.destroy(intel);
|
|
|
|
if (ctx->swrast_context) {
|
|
_swsetup_DestroyContext(&intel->ctx);
|
|
_tnl_DestroyContext(&intel->ctx);
|
|
}
|
|
_vbo_DestroyContext(&intel->ctx);
|
|
|
|
if (ctx->swrast_context)
|
|
_swrast_DestroyContext(&intel->ctx);
|
|
intel->Fallback = 0x0; /* don't call _swrast_Flush later */
|
|
|
|
intel_batchbuffer_free(intel);
|
|
|
|
free(intel->prim.vb);
|
|
intel->prim.vb = NULL;
|
|
drm_intel_bo_unreference(intel->prim.vb_bo);
|
|
intel->prim.vb_bo = NULL;
|
|
drm_intel_bo_unreference(intel->first_post_swapbuffers_batch);
|
|
intel->first_post_swapbuffers_batch = NULL;
|
|
|
|
driDestroyOptionCache(&intel->optionCache);
|
|
|
|
/* free the Mesa context */
|
|
_mesa_free_context_data(&intel->ctx, true);
|
|
|
|
align_free(intel);
|
|
driContextPriv->driverPrivate = NULL;
|
|
}
|
|
}
|
|
|
|
GLboolean
|
|
intelUnbindContext(__DRIcontext * driContextPriv)
|
|
{
|
|
/* Unset current context and dispath table */
|
|
_mesa_make_current(NULL, NULL, NULL);
|
|
|
|
return true;
|
|
}
|
|
|
|
GLboolean
|
|
intelMakeCurrent(__DRIcontext * driContextPriv,
|
|
__DRIdrawable * driDrawPriv,
|
|
__DRIdrawable * driReadPriv)
|
|
{
|
|
struct intel_context *intel;
|
|
|
|
if (driContextPriv)
|
|
intel = (struct intel_context *) driContextPriv->driverPrivate;
|
|
else
|
|
intel = NULL;
|
|
|
|
if (driContextPriv) {
|
|
struct gl_context *ctx = &intel->ctx;
|
|
struct gl_framebuffer *fb, *readFb;
|
|
|
|
if (driDrawPriv == NULL && driReadPriv == NULL) {
|
|
fb = _mesa_get_incomplete_framebuffer();
|
|
readFb = _mesa_get_incomplete_framebuffer();
|
|
} else {
|
|
fb = driDrawPriv->driverPrivate;
|
|
readFb = driReadPriv->driverPrivate;
|
|
driContextPriv->dri2.draw_stamp = driDrawPriv->dri2.stamp - 1;
|
|
driContextPriv->dri2.read_stamp = driReadPriv->dri2.stamp - 1;
|
|
}
|
|
|
|
intel_prepare_render(intel);
|
|
_mesa_make_current(ctx, fb, readFb);
|
|
|
|
/* We do this in intel_prepare_render() too, but intel->ctx.DrawBuffer
|
|
* is NULL at that point. We can't call _mesa_makecurrent()
|
|
* first, since we need the buffer size for the initial
|
|
* viewport. So just call intel_draw_buffer() again here. */
|
|
intel_draw_buffer(ctx);
|
|
}
|
|
else {
|
|
_mesa_make_current(NULL, NULL, NULL);
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* \brief Query DRI2 to obtain a DRIdrawable's buffers.
|
|
*
|
|
* To determine which DRI buffers to request, examine the renderbuffers
|
|
* attached to the drawable's framebuffer. Then request the buffers with
|
|
* DRI2GetBuffers() or DRI2GetBuffersWithFormat().
|
|
*
|
|
* This is called from intel_update_renderbuffers().
|
|
*
|
|
* \param drawable Drawable whose buffers are queried.
|
|
* \param buffers [out] List of buffers returned by DRI2 query.
|
|
* \param buffer_count [out] Number of buffers returned.
|
|
*
|
|
* \see intel_update_renderbuffers()
|
|
* \see DRI2GetBuffers()
|
|
* \see DRI2GetBuffersWithFormat()
|
|
*/
|
|
static void
|
|
intel_query_dri2_buffers(struct intel_context *intel,
|
|
__DRIdrawable *drawable,
|
|
__DRIbuffer **buffers,
|
|
int *buffer_count)
|
|
{
|
|
__DRIscreen *screen = intel->intelScreen->driScrnPriv;
|
|
struct gl_framebuffer *fb = drawable->driverPrivate;
|
|
int i = 0;
|
|
unsigned attachments[__DRI_BUFFER_COUNT];
|
|
|
|
struct intel_renderbuffer *front_rb;
|
|
struct intel_renderbuffer *back_rb;
|
|
|
|
front_rb = intel_get_renderbuffer(fb, BUFFER_FRONT_LEFT);
|
|
back_rb = intel_get_renderbuffer(fb, BUFFER_BACK_LEFT);
|
|
|
|
memset(attachments, 0, sizeof(attachments));
|
|
if ((_mesa_is_front_buffer_drawing(fb) ||
|
|
_mesa_is_front_buffer_reading(fb) ||
|
|
!back_rb) && front_rb) {
|
|
/* If a fake front buffer is in use, then querying for
|
|
* __DRI_BUFFER_FRONT_LEFT will cause the server to copy the image from
|
|
* the real front buffer to the fake front buffer. So before doing the
|
|
* query, we need to make sure all the pending drawing has landed in the
|
|
* real front buffer.
|
|
*/
|
|
intel_flush(&intel->ctx);
|
|
intel_flush_front(&intel->ctx);
|
|
|
|
attachments[i++] = __DRI_BUFFER_FRONT_LEFT;
|
|
attachments[i++] = intel_bits_per_pixel(front_rb);
|
|
} else if (front_rb && intel->front_buffer_dirty) {
|
|
/* We have pending front buffer rendering, but we aren't querying for a
|
|
* front buffer. If the front buffer we have is a fake front buffer,
|
|
* the X server is going to throw it away when it processes the query.
|
|
* So before doing the query, make sure all the pending drawing has
|
|
* landed in the real front buffer.
|
|
*/
|
|
intel_flush(&intel->ctx);
|
|
intel_flush_front(&intel->ctx);
|
|
}
|
|
|
|
if (back_rb) {
|
|
attachments[i++] = __DRI_BUFFER_BACK_LEFT;
|
|
attachments[i++] = intel_bits_per_pixel(back_rb);
|
|
}
|
|
|
|
assert(i <= ARRAY_SIZE(attachments));
|
|
|
|
*buffers = screen->dri2.loader->getBuffersWithFormat(drawable,
|
|
&drawable->w,
|
|
&drawable->h,
|
|
attachments, i / 2,
|
|
buffer_count,
|
|
drawable->loaderPrivate);
|
|
}
|
|
|
|
/**
|
|
* \brief Assign a DRI buffer's DRM region to a renderbuffer.
|
|
*
|
|
* This is called from intel_update_renderbuffers().
|
|
*
|
|
* \par Note:
|
|
* DRI buffers whose attachment point is DRI2BufferStencil or
|
|
* DRI2BufferDepthStencil are handled as special cases.
|
|
*
|
|
* \param buffer_name is a human readable name, such as "dri2 front buffer",
|
|
* that is passed to intel_region_alloc_for_handle().
|
|
*
|
|
* \see intel_update_renderbuffers()
|
|
* \see intel_region_alloc_for_handle()
|
|
*/
|
|
static void
|
|
intel_process_dri2_buffer(struct intel_context *intel,
|
|
__DRIdrawable *drawable,
|
|
__DRIbuffer *buffer,
|
|
struct intel_renderbuffer *rb,
|
|
const char *buffer_name)
|
|
{
|
|
struct intel_region *region = NULL;
|
|
|
|
if (!rb)
|
|
return;
|
|
|
|
/* We try to avoid closing and reopening the same BO name, because the first
|
|
* use of a mapping of the buffer involves a bunch of page faulting which is
|
|
* moderately expensive.
|
|
*/
|
|
if (rb->mt &&
|
|
rb->mt->region &&
|
|
rb->mt->region->name == buffer->name)
|
|
return;
|
|
|
|
if (unlikely(INTEL_DEBUG & DEBUG_DRI)) {
|
|
fprintf(stderr,
|
|
"attaching buffer %d, at %d, cpp %d, pitch %d\n",
|
|
buffer->name, buffer->attachment,
|
|
buffer->cpp, buffer->pitch);
|
|
}
|
|
|
|
intel_miptree_release(&rb->mt);
|
|
region = intel_region_alloc_for_handle(intel->intelScreen,
|
|
buffer->cpp,
|
|
drawable->w,
|
|
drawable->h,
|
|
buffer->pitch,
|
|
buffer->name,
|
|
buffer_name);
|
|
if (!region)
|
|
return;
|
|
|
|
rb->mt = intel_miptree_create_for_dri2_buffer(intel,
|
|
buffer->attachment,
|
|
intel_rb_format(rb),
|
|
region);
|
|
intel_region_release(®ion);
|
|
}
|
|
|
|
/**
|
|
* \brief Query DRI Image loader to obtain a DRIdrawable's buffers.
|
|
*
|
|
* To determine which DRI buffers to request, examine the renderbuffers
|
|
* attached to the drawable's framebuffer. Then request the buffers with
|
|
* dri3
|
|
*
|
|
* This is called from intel_update_renderbuffers().
|
|
*
|
|
* \param drawable Drawable whose buffers are queried.
|
|
* \param buffers [out] List of buffers returned by DRI2 query.
|
|
* \param buffer_count [out] Number of buffers returned.
|
|
*
|
|
* \see intel_update_renderbuffers()
|
|
*/
|
|
|
|
static void
|
|
intel_update_image_buffer(struct intel_context *intel,
|
|
__DRIdrawable *drawable,
|
|
struct intel_renderbuffer *rb,
|
|
__DRIimage *buffer,
|
|
enum __DRIimageBufferMask buffer_type)
|
|
{
|
|
struct intel_region *region = buffer->region;
|
|
|
|
if (!rb || !region)
|
|
return;
|
|
|
|
unsigned num_samples = rb->Base.Base.NumSamples;
|
|
|
|
if (rb->mt &&
|
|
rb->mt->region &&
|
|
rb->mt->region == region)
|
|
return;
|
|
|
|
intel_miptree_release(&rb->mt);
|
|
rb->mt = intel_miptree_create_for_image_buffer(intel,
|
|
buffer_type,
|
|
intel_rb_format(rb),
|
|
num_samples,
|
|
region);
|
|
}
|
|
|
|
|
|
static void
|
|
intel_update_image_buffers(struct intel_context *intel, __DRIdrawable *drawable)
|
|
{
|
|
struct gl_framebuffer *fb = drawable->driverPrivate;
|
|
__DRIscreen *screen = intel->intelScreen->driScrnPriv;
|
|
struct intel_renderbuffer *front_rb;
|
|
struct intel_renderbuffer *back_rb;
|
|
struct __DRIimageList images;
|
|
unsigned int format;
|
|
uint32_t buffer_mask = 0;
|
|
int ret;
|
|
|
|
front_rb = intel_get_renderbuffer(fb, BUFFER_FRONT_LEFT);
|
|
back_rb = intel_get_renderbuffer(fb, BUFFER_BACK_LEFT);
|
|
|
|
if (back_rb)
|
|
format = intel_rb_format(back_rb);
|
|
else if (front_rb)
|
|
format = intel_rb_format(front_rb);
|
|
else
|
|
return;
|
|
|
|
if (front_rb && (_mesa_is_front_buffer_drawing(fb) ||
|
|
_mesa_is_front_buffer_reading(fb) || !back_rb)) {
|
|
buffer_mask |= __DRI_IMAGE_BUFFER_FRONT;
|
|
}
|
|
|
|
if (back_rb)
|
|
buffer_mask |= __DRI_IMAGE_BUFFER_BACK;
|
|
|
|
ret = screen->image.loader->getBuffers(drawable,
|
|
driGLFormatToImageFormat(format),
|
|
&drawable->dri2.stamp,
|
|
drawable->loaderPrivate,
|
|
buffer_mask,
|
|
&images);
|
|
if (!ret)
|
|
return;
|
|
|
|
if (images.image_mask & __DRI_IMAGE_BUFFER_FRONT) {
|
|
drawable->w = images.front->width;
|
|
drawable->h = images.front->height;
|
|
intel_update_image_buffer(intel,
|
|
drawable,
|
|
front_rb,
|
|
images.front,
|
|
__DRI_IMAGE_BUFFER_FRONT);
|
|
}
|
|
if (images.image_mask & __DRI_IMAGE_BUFFER_BACK) {
|
|
drawable->w = images.back->width;
|
|
drawable->h = images.back->height;
|
|
intel_update_image_buffer(intel,
|
|
drawable,
|
|
back_rb,
|
|
images.back,
|
|
__DRI_IMAGE_BUFFER_BACK);
|
|
}
|
|
}
|