- *
- **************************************************************************/
-
-#include "intel_screen.h"
-#include "intel_context.h"
-#include "intel_blit.h"
-#include "intel_regions.h"
-#include "intel_batchbuffer.h"
-#include "context.h"
-#include "framebuffer.h"
-#include "macros.h"
-#include "utils.h"
-#include "vblank.h"
-#include "swrast/swrast.h"
-
-GLboolean intel_intersect_cliprects( drm_clip_rect_t *dst,
- const drm_clip_rect_t *a,
- const drm_clip_rect_t *b )
-{
- dst->x1 = MAX2(a->x1, b->x1);
- dst->x2 = MIN2(a->x2, b->x2);
- dst->y1 = MAX2(a->y1, b->y1);
- dst->y2 = MIN2(a->y2, b->y2);
-
- return (dst->x1 <= dst->x2 &&
- dst->y1 <= dst->y2);
-}
-
-struct intel_region *intel_drawbuf_region( struct intel_context *intel )
-{
- switch (intel->ctx.DrawBuffer->_ColorDrawBufferMask[0]) {
- case BUFFER_BIT_FRONT_LEFT:
- return intel->front_region;
- case BUFFER_BIT_BACK_LEFT:
- return intel->back_region;
- default:
- /* Not necessary to fallback - could handle either NONE or
- * FRONT_AND_BACK cases below.
- */
- return NULL;
- }
-}
-
-struct intel_region *intel_readbuf_region( struct intel_context *intel )
-{
- GLcontext *ctx = &intel->ctx;
-
- /* This will have to change to support EXT_fbo's, but is correct
- * for now:
- */
- switch (ctx->ReadBuffer->_ColorReadBufferIndex) {
- case BUFFER_FRONT_LEFT:
- return intel->front_region;
- case BUFFER_BACK_LEFT:
- return intel->back_region;
- default:
- assert(0);
- return NULL;
- }
-}
-
-
-
-static void intelBufferSize(GLframebuffer *buffer,
- GLuint *width,
- GLuint *height)
-{
- GET_CURRENT_CONTEXT(ctx);
- struct intel_context *intel = intel_context(ctx);
- /* Need to lock to make sure the driDrawable is uptodate. This
- * information is used to resize Mesa's software buffers, so it has
- * to be correct.
- */
- LOCK_HARDWARE(intel);
- if (intel->driDrawable) {
- *width = intel->driDrawable->w;
- *height = intel->driDrawable->h;
- }
- else {
- *width = 0;
- *height = 0;
- }
- UNLOCK_HARDWARE(intel);
-}
-
-
-static void intelSetFrontClipRects( struct intel_context *intel )
-{
- __DRIdrawablePrivate *dPriv = intel->driDrawable;
-
- if (!dPriv) return;
-
- intel->numClipRects = dPriv->numClipRects;
- intel->pClipRects = dPriv->pClipRects;
- intel->drawX = dPriv->x;
- intel->drawY = dPriv->y;
-}
-
-
-static void intelSetBackClipRects( struct intel_context *intel )
-{
- __DRIdrawablePrivate *dPriv = intel->driDrawable;
-
- if (!dPriv) return;
-
- if (intel->sarea->pf_enabled == 0 && dPriv->numBackClipRects == 0) {
- intel->numClipRects = dPriv->numClipRects;
- intel->pClipRects = dPriv->pClipRects;
- intel->drawX = dPriv->x;
- intel->drawY = dPriv->y;
- } else {
- intel->numClipRects = dPriv->numBackClipRects;
- intel->pClipRects = dPriv->pBackClipRects;
- intel->drawX = dPriv->backX;
- intel->drawY = dPriv->backY;
-
- if (dPriv->numBackClipRects == 1 &&
- dPriv->x == dPriv->backX &&
- dPriv->y == dPriv->backY) {
-
- /* Repeat the calculation of the back cliprect dimensions here
- * as early versions of dri.a in the Xserver are incorrect. Try
- * very hard not to restrict future versions of dri.a which
- * might eg. allocate truly private back buffers.
- */
- int x1, y1;
- int x2, y2;
-
- x1 = dPriv->x;
- y1 = dPriv->y;
- x2 = dPriv->x + dPriv->w;
- y2 = dPriv->y + dPriv->h;
-
- if (x1 < 0) x1 = 0;
- if (y1 < 0) y1 = 0;
- if (x2 > intel->intelScreen->width) x2 = intel->intelScreen->width;
- if (y2 > intel->intelScreen->height) y2 = intel->intelScreen->height;