}
-
-/**
- * Update the following fields for rendering:
- * intel->numClipRects
- * intel->pClipRects
- */
-static void
-intelSetRenderbufferClipRects(struct intel_context *intel)
-{
- /* zero-sized buffers might be legal? */
- assert(intel->ctx.DrawBuffer->Width > 0);
- assert(intel->ctx.DrawBuffer->Height > 0);
- intel->fboRect.x1 = 0;
- intel->fboRect.y1 = 0;
- intel->fboRect.x2 = intel->ctx.DrawBuffer->Width;
- intel->fboRect.y2 = intel->ctx.DrawBuffer->Height;
- intel->numClipRects = 1;
- intel->pClipRects = &intel->fboRect;
-}
-
-
/**
* This will be called whenever the currently bound window is moved/resized.
* XXX: actually, it seems to NOT be called when the window is only moved (BP).
}
}
-
-/**
- * Update the hardware state for drawing into a window or framebuffer object.
- *
- * Called by glDrawBuffer, glBindFramebufferEXT, MakeCurrent, and other
- * places within the driver.
- *
- * Basically, this needs to be called any time the current framebuffer
- * changes, the renderbuffers change, or we need to draw into different
- * color buffers.
- */
-void
-intel_draw_buffer(GLcontext * ctx, struct gl_framebuffer *fb)
-{
- struct intel_context *intel = intel_context(ctx);
- struct pipe_region *colorRegion, *depthRegion = NULL;
- struct intel_renderbuffer *irbDepth = NULL, *irbStencil = NULL;
-
- if (!fb) {
- /* this can happen during the initial context initialization */
- return;
- }
-
- /* Do this here, not core Mesa, since this function is called from
- * many places within the driver.
- */
- if (ctx->NewState & (_NEW_BUFFERS | _NEW_COLOR | _NEW_PIXEL)) {
- /* this updates the DrawBuffer->_NumColorDrawBuffers fields, etc */
- _mesa_update_framebuffer(ctx);
- /* this updates the DrawBuffer's Width/Height if it's a FBO */
- _mesa_update_draw_buffer_bounds(ctx);
- }
-
- if (fb->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) {
- /* this may occur when we're called by glBindFrameBuffer() during
- * the process of someone setting up renderbuffers, etc.
- */
- /*_mesa_debug(ctx, "DrawBuffer: incomplete user FBO\n");*/
- return;
- }
-
- if (fb->Name)
- intel_validate_paired_depth_stencil(ctx, fb);
-
- /*
- * How many color buffers are we drawing into?
- */
- if (fb->_NumColorDrawBuffers[0] != 1) {
- /* writing to 0 or 2 or 4 color buffers */
- /*_mesa_debug(ctx, "Software rendering\n");*/
- FALLBACK(intel, INTEL_FALLBACK_DRAW_BUFFER, GL_TRUE);
- }
- else {
- /* draw to exactly one color buffer */
- /*_mesa_debug(ctx, "Hardware rendering\n");*/
- FALLBACK(intel, INTEL_FALLBACK_DRAW_BUFFER, GL_FALSE);
- }
-
- /*
- * Get the intel_renderbuffer for the colorbuffer we're drawing into.
- * And set up cliprects.
- */
- {
- struct intel_renderbuffer *irb;
- intelSetRenderbufferClipRects(intel);
- irb = intel_renderbuffer(fb->_ColorDrawBuffers[0][0]);
- colorRegion = (irb && irb->region) ? irb->region : NULL;
- }
-
- /* Update culling direction which changes depending on the
- * orientation of the buffer:
- */
- if (ctx->Driver.FrontFace)
- ctx->Driver.FrontFace(ctx, ctx->Polygon.FrontFace);
- else
- ctx->NewState |= _NEW_POLYGON;
-
- if (!colorRegion) {
- FALLBACK(intel, INTEL_FALLBACK_DRAW_BUFFER, GL_TRUE);
- }
- else {
- FALLBACK(intel, INTEL_FALLBACK_DRAW_BUFFER, GL_FALSE);
- }
-
- /***
- *** Get depth buffer region and check if we need a software fallback.
- *** Note that the depth buffer is usually a DEPTH_STENCIL buffer.
- ***/
- if (fb->_DepthBuffer && fb->_DepthBuffer->Wrapped) {
- irbDepth = intel_renderbuffer(fb->_DepthBuffer->Wrapped);
- if (irbDepth && irbDepth->region) {
- FALLBACK(intel, INTEL_FALLBACK_DEPTH_BUFFER, GL_FALSE);
- depthRegion = irbDepth->region;
- }
- else {
- FALLBACK(intel, INTEL_FALLBACK_DEPTH_BUFFER, GL_TRUE);
- depthRegion = NULL;
- }
- }
- else {
- /* not using depth buffer */
- FALLBACK(intel, INTEL_FALLBACK_DEPTH_BUFFER, GL_FALSE);
- depthRegion = NULL;
- }
-
- /***
- *** Stencil buffer
- *** This can only be hardware accelerated if we're using a
- *** combined DEPTH_STENCIL buffer (for now anyway).
- ***/
- if (fb->_StencilBuffer && fb->_StencilBuffer->Wrapped) {
- irbStencil = intel_renderbuffer(fb->_StencilBuffer->Wrapped);
- if (irbStencil && irbStencil->region) {
- ASSERT(irbStencil->Base._ActualFormat == GL_DEPTH24_STENCIL8_EXT);
- FALLBACK(intel, INTEL_FALLBACK_STENCIL_BUFFER, GL_FALSE);
- /* need to re-compute stencil hw state */
-// ctx->Driver.Enable(ctx, GL_STENCIL_TEST, ctx->Stencil.Enabled);
- if (!depthRegion)
- depthRegion = irbStencil->region;
- }
- else {
- FALLBACK(intel, INTEL_FALLBACK_STENCIL_BUFFER, GL_TRUE);
- }
- }
- else {
- /* XXX FBO: instead of FALSE, pass ctx->Stencil.Enabled ??? */
- FALLBACK(intel, INTEL_FALLBACK_STENCIL_BUFFER, GL_FALSE);
- /* need to re-compute stencil hw state */
-// ctx->Driver.Enable(ctx, GL_STENCIL_TEST, ctx->Stencil.Enabled);
- }
-
-
- /**
- ** Release old regions, reference new regions
- **/
-
- // intel->vtbl.set_draw_region(intel, colorRegion, depthRegion);
-
- /* update viewport since it depends on window size */
-// ctx->Driver.Viewport(ctx, ctx->Viewport.X, ctx->Viewport.Y,
-// ctx->Viewport.Width, ctx->Viewport.Height);
-
- /* Update hardware scissor */
-// ctx->Driver.Scissor(ctx, ctx->Scissor.X, ctx->Scissor.Y,
-// ctx->Scissor.Width, ctx->Scissor.Height);
-}
-
-
-static void
-intelDrawBuffer(GLcontext * ctx, GLenum mode)
-{
- intel_draw_buffer(ctx, ctx->DrawBuffer);
-}
-
-
-static void
-intelReadBuffer(GLcontext * ctx, GLenum mode)
-{
- if (ctx->ReadBuffer == ctx->DrawBuffer) {
- /* This will update FBO completeness status.
- * A framebuffer will be incomplete if the GL_READ_BUFFER setting
- * refers to a missing renderbuffer. Calling glReadBuffer can set
- * that straight and can make the drawing buffer complete.
- */
- intel_draw_buffer(ctx, ctx->DrawBuffer);
- }
- /* Generally, functions which read pixels (glReadPixels, glCopyPixels, etc)
- * reference ctx->ReadBuffer and do appropriate state checks.
- */
-}
-
-
-void
-intelInitBufferFuncs(struct dd_function_table *functions)
-{
- functions->DrawBuffer = intelDrawBuffer;
- functions->ReadBuffer = intelReadBuffer;
-}
--- /dev/null
+/**************************************************************************
+ *
+ * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ **************************************************************************/
+
+#include "intel_screen.h"
+#include "intel_context.h"
+#include "intel_blit.h"
+#include "intel_buffers.h"
+#include "intel_depthstencil.h"
+#include "intel_fbo.h"
+#include "intel_batchbuffer.h"
+#include "intel_reg.h"
+#include "context.h"
+#include "utils.h"
+#include "drirenderbuffer.h"
+#include "framebuffer.h"
+#include "vblank.h"
+
+#include "pipe/p_context.h"
+
+
+
+/**
+ * Update the following fields for rendering:
+ * intel->numClipRects
+ * intel->pClipRects
+ */
+static void
+intelSetRenderbufferClipRects(struct intel_context *intel)
+{
+ /* zero-sized buffers might be legal? */
+ assert(intel->ctx.DrawBuffer->Width > 0);
+ assert(intel->ctx.DrawBuffer->Height > 0);
+ intel->fboRect.x1 = 0;
+ intel->fboRect.y1 = 0;
+ intel->fboRect.x2 = intel->ctx.DrawBuffer->Width;
+ intel->fboRect.y2 = intel->ctx.DrawBuffer->Height;
+ intel->numClipRects = 1;
+ intel->pClipRects = &intel->fboRect;
+}
+
+
+
+/**
+ * Update the hardware state for drawing into a window or framebuffer object.
+ *
+ * Called by glDrawBuffer, glBindFramebufferEXT, MakeCurrent, and other
+ * places within the driver.
+ *
+ * Basically, this needs to be called any time the current framebuffer
+ * changes, the renderbuffers change, or we need to draw into different
+ * color buffers.
+ */
+void
+intel_draw_buffer(GLcontext * ctx, struct gl_framebuffer *fb)
+{
+ struct intel_context *intel = intel_context(ctx);
+ struct pipe_region *colorRegion, *depthRegion = NULL;
+ struct intel_renderbuffer *irbDepth = NULL, *irbStencil = NULL;
+
+ if (!fb) {
+ /* this can happen during the initial context initialization */
+ return;
+ }
+
+ /* Do this here, not core Mesa, since this function is called from
+ * many places within the driver.
+ */
+ if (ctx->NewState & (_NEW_BUFFERS | _NEW_COLOR | _NEW_PIXEL)) {
+ /* this updates the DrawBuffer->_NumColorDrawBuffers fields, etc */
+ _mesa_update_framebuffer(ctx);
+ /* this updates the DrawBuffer's Width/Height if it's a FBO */
+ _mesa_update_draw_buffer_bounds(ctx);
+ }
+
+ if (fb->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) {
+ /* this may occur when we're called by glBindFrameBuffer() during
+ * the process of someone setting up renderbuffers, etc.
+ */
+ /*_mesa_debug(ctx, "DrawBuffer: incomplete user FBO\n");*/
+ return;
+ }
+
+ if (fb->Name)
+ intel_validate_paired_depth_stencil(ctx, fb);
+
+ /*
+ * How many color buffers are we drawing into?
+ */
+ if (fb->_NumColorDrawBuffers[0] != 1) {
+ /* writing to 0 or 2 or 4 color buffers */
+ /*_mesa_debug(ctx, "Software rendering\n");*/
+ FALLBACK(intel, INTEL_FALLBACK_DRAW_BUFFER, GL_TRUE);
+ }
+ else {
+ /* draw to exactly one color buffer */
+ /*_mesa_debug(ctx, "Hardware rendering\n");*/
+ FALLBACK(intel, INTEL_FALLBACK_DRAW_BUFFER, GL_FALSE);
+ }
+
+ /*
+ * Get the intel_renderbuffer for the colorbuffer we're drawing into.
+ * And set up cliprects.
+ */
+ {
+ struct intel_renderbuffer *irb;
+ intelSetRenderbufferClipRects(intel);
+ irb = intel_renderbuffer(fb->_ColorDrawBuffers[0][0]);
+ colorRegion = (irb && irb->region) ? irb->region : NULL;
+ }
+
+ /* Update culling direction which changes depending on the
+ * orientation of the buffer:
+ */
+ if (ctx->Driver.FrontFace)
+ ctx->Driver.FrontFace(ctx, ctx->Polygon.FrontFace);
+ else
+ ctx->NewState |= _NEW_POLYGON;
+
+ if (!colorRegion) {
+ FALLBACK(intel, INTEL_FALLBACK_DRAW_BUFFER, GL_TRUE);
+ }
+ else {
+ FALLBACK(intel, INTEL_FALLBACK_DRAW_BUFFER, GL_FALSE);
+ }
+
+ /***
+ *** Get depth buffer region and check if we need a software fallback.
+ *** Note that the depth buffer is usually a DEPTH_STENCIL buffer.
+ ***/
+ if (fb->_DepthBuffer && fb->_DepthBuffer->Wrapped) {
+ irbDepth = intel_renderbuffer(fb->_DepthBuffer->Wrapped);
+ if (irbDepth && irbDepth->region) {
+ FALLBACK(intel, INTEL_FALLBACK_DEPTH_BUFFER, GL_FALSE);
+ depthRegion = irbDepth->region;
+ }
+ else {
+ FALLBACK(intel, INTEL_FALLBACK_DEPTH_BUFFER, GL_TRUE);
+ depthRegion = NULL;
+ }
+ }
+ else {
+ /* not using depth buffer */
+ FALLBACK(intel, INTEL_FALLBACK_DEPTH_BUFFER, GL_FALSE);
+ depthRegion = NULL;
+ }
+
+ /***
+ *** Stencil buffer
+ *** This can only be hardware accelerated if we're using a
+ *** combined DEPTH_STENCIL buffer (for now anyway).
+ ***/
+ if (fb->_StencilBuffer && fb->_StencilBuffer->Wrapped) {
+ irbStencil = intel_renderbuffer(fb->_StencilBuffer->Wrapped);
+ if (irbStencil && irbStencil->region) {
+ ASSERT(irbStencil->Base._ActualFormat == GL_DEPTH24_STENCIL8_EXT);
+ FALLBACK(intel, INTEL_FALLBACK_STENCIL_BUFFER, GL_FALSE);
+ /* need to re-compute stencil hw state */
+// ctx->Driver.Enable(ctx, GL_STENCIL_TEST, ctx->Stencil.Enabled);
+ if (!depthRegion)
+ depthRegion = irbStencil->region;
+ }
+ else {
+ FALLBACK(intel, INTEL_FALLBACK_STENCIL_BUFFER, GL_TRUE);
+ }
+ }
+ else {
+ /* XXX FBO: instead of FALSE, pass ctx->Stencil.Enabled ??? */
+ FALLBACK(intel, INTEL_FALLBACK_STENCIL_BUFFER, GL_FALSE);
+ /* need to re-compute stencil hw state */
+// ctx->Driver.Enable(ctx, GL_STENCIL_TEST, ctx->Stencil.Enabled);
+ }
+
+
+ /**
+ ** Release old regions, reference new regions
+ **/
+
+ // intel->vtbl.set_draw_region(intel, colorRegion, depthRegion);
+
+ /* update viewport since it depends on window size */
+// ctx->Driver.Viewport(ctx, ctx->Viewport.X, ctx->Viewport.Y,
+// ctx->Viewport.Width, ctx->Viewport.Height);
+
+ /* Update hardware scissor */
+// ctx->Driver.Scissor(ctx, ctx->Scissor.X, ctx->Scissor.Y,
+// ctx->Scissor.Width, ctx->Scissor.Height);
+}
+
+
+static void
+intelDrawBuffer(GLcontext * ctx, GLenum mode)
+{
+ intel_draw_buffer(ctx, ctx->DrawBuffer);
+}
+
+
+static void
+intelReadBuffer(GLcontext * ctx, GLenum mode)
+{
+ if (ctx->ReadBuffer == ctx->DrawBuffer) {
+ /* This will update FBO completeness status.
+ * A framebuffer will be incomplete if the GL_READ_BUFFER setting
+ * refers to a missing renderbuffer. Calling glReadBuffer can set
+ * that straight and can make the drawing buffer complete.
+ */
+ intel_draw_buffer(ctx, ctx->DrawBuffer);
+ }
+ /* Generally, functions which read pixels (glReadPixels, glCopyPixels, etc)
+ * reference ctx->ReadBuffer and do appropriate state checks.
+ */
+}
+
+
+void
+intelInitBufferFuncs(struct dd_function_table *functions)
+{
+ functions->DrawBuffer = intelDrawBuffer;
+ functions->ReadBuffer = intelReadBuffer;
+}
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