diff options
Diffstat (limited to 'src/mesa/drivers/dri/i965/intel_buffers.c')
| l---------[-rw-r--r--] | src/mesa/drivers/dri/i965/intel_buffers.c | 548 |
1 files changed, 1 insertions, 547 deletions
diff --git a/src/mesa/drivers/dri/i965/intel_buffers.c b/src/mesa/drivers/dri/i965/intel_buffers.c index d155c039d7..c86daa49f4 100644..120000 --- a/src/mesa/drivers/dri/i965/intel_buffers.c +++ b/src/mesa/drivers/dri/i965/intel_buffers.c @@ -1,547 +1 @@ -/************************************************************************** - * - * 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_regions.h" -#include "intel_batchbuffer.h" -#include "context.h" -#include "framebuffer.h" -#include "macros.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; - - if (x1 == dPriv->pBackClipRects[0].x1 && - y1 == dPriv->pBackClipRects[0].y1) { - - dPriv->pBackClipRects[0].x2 = x2; - dPriv->pBackClipRects[0].y2 = y2; - } - } - } -} - - -void intelWindowMoved( struct intel_context *intel ) -{ - __DRIdrawablePrivate *dPriv = intel->driDrawable; - - if (!intel->ctx.DrawBuffer) { - intelSetFrontClipRects( intel ); - } - else { - switch (intel->ctx.DrawBuffer->_ColorDrawBufferMask[0]) { - case BUFFER_BIT_FRONT_LEFT: - intelSetFrontClipRects( intel ); - break; - case BUFFER_BIT_BACK_LEFT: - intelSetBackClipRects( intel ); - break; - default: - /* glDrawBuffer(GL_NONE or GL_FRONT_AND_BACK): software fallback */ - intelSetFrontClipRects( intel ); - } - } - - _mesa_resize_framebuffer(&intel->ctx, - (GLframebuffer*)dPriv->driverPrivate, - dPriv->w, dPriv->h); - - /* Set state we know depends on drawable parameters: - */ - { - GLcontext *ctx = &intel->ctx; - - if (ctx->Driver.Scissor) - ctx->Driver.Scissor( ctx, ctx->Scissor.X, ctx->Scissor.Y, - ctx->Scissor.Width, ctx->Scissor.Height ); - - if (ctx->Driver.DepthRange) - ctx->Driver.DepthRange( ctx, - ctx->Viewport.Near, - ctx->Viewport.Far ); - - intel->NewGLState |= _NEW_SCISSOR; - } - - /* This works because the lock is always grabbed before emitting - * commands and commands are always flushed prior to releasing - * the lock. - */ - intel->NewGLState |= _NEW_WINDOW_POS; -} - - - -/* A true meta version of this would be very simple and additionally - * machine independent. Maybe we'll get there one day. - */ -static void intelClearWithTris(struct intel_context *intel, - GLbitfield mask) -{ - GLcontext *ctx = &intel->ctx; - drm_clip_rect_t clear; - GLint cx, cy, cw, ch; - - if (INTEL_DEBUG & DEBUG_DRI) - _mesa_printf("%s %x\n", __FUNCTION__, mask); - - { - - intel->vtbl.install_meta_state(intel); - - /* Get clear bounds after locking */ - cx = ctx->DrawBuffer->_Xmin; - cy = ctx->DrawBuffer->_Ymin; - cw = ctx->DrawBuffer->_Xmax - ctx->DrawBuffer->_Xmin; - ch = ctx->DrawBuffer->_Ymax - ctx->DrawBuffer->_Ymin; - - clear.x1 = cx; - clear.y1 = cy; - clear.x2 = cx + cw; - clear.y2 = cy + ch; - - /* Back and stencil cliprects are the same. Try and do both - * buffers at once: - */ - if (mask & (BUFFER_BIT_BACK_LEFT|BUFFER_BIT_STENCIL|BUFFER_BIT_DEPTH)) { - intel->vtbl.meta_draw_region(intel, - intel->back_region, - intel->depth_region ); - - if (mask & BUFFER_BIT_BACK_LEFT) - intel->vtbl.meta_color_mask(intel, GL_TRUE ); - else - intel->vtbl.meta_color_mask(intel, GL_FALSE ); - - if (mask & BUFFER_BIT_STENCIL) - intel->vtbl.meta_stencil_replace( intel, - intel->ctx.Stencil.WriteMask[0], - intel->ctx.Stencil.Clear); - else - intel->vtbl.meta_no_stencil_write(intel); - - if (mask & BUFFER_BIT_DEPTH) - intel->vtbl.meta_depth_replace( intel ); - else - intel->vtbl.meta_no_depth_write(intel); - - /* XXX: Using INTEL_BATCH_NO_CLIPRECTS here is dangerous as the - * drawing origin may not be correctly emitted. - */ - intel->vtbl.meta_draw_quad(intel, - clear.x1, clear.x2, - clear.y1, clear.y2, - intel->ctx.Depth.Clear, - intel->clear_chan[0], - intel->clear_chan[1], - intel->clear_chan[2], - intel->clear_chan[3], - 0, 0, 0, 0); - } - - /* Front may have different cliprects: - */ - if (mask & BUFFER_BIT_FRONT_LEFT) { - intel->vtbl.meta_no_depth_write(intel); - intel->vtbl.meta_no_stencil_write(intel); - intel->vtbl.meta_color_mask(intel, GL_TRUE ); - intel->vtbl.meta_draw_region(intel, - intel->front_region, - intel->depth_region); - - /* XXX: Using INTEL_BATCH_NO_CLIPRECTS here is dangerous as the - * drawing origin may not be correctly emitted. - */ - intel->vtbl.meta_draw_quad(intel, - clear.x1, clear.x2, - clear.y1, clear.y2, - 0, - intel->clear_chan[0], - intel->clear_chan[1], - intel->clear_chan[2], - intel->clear_chan[3], - 0, 0, 0, 0); - } - - intel->vtbl.leave_meta_state( intel ); - } -} - - - - - -static void intelClear(GLcontext *ctx, GLbitfield mask) -{ - struct intel_context *intel = intel_context( ctx ); - const GLuint colorMask = *((GLuint *) &ctx->Color.ColorMask); - GLbitfield tri_mask = 0; - GLbitfield blit_mask = 0; - GLbitfield swrast_mask = 0; - - if (INTEL_DEBUG & DEBUG_DRI) - fprintf(stderr, "%s %x\n", __FUNCTION__, mask); - - - if (mask & BUFFER_BIT_FRONT_LEFT) { - if (colorMask == ~0) { - blit_mask |= BUFFER_BIT_FRONT_LEFT; - } - else { - tri_mask |= BUFFER_BIT_FRONT_LEFT; - } - } - - if (mask & BUFFER_BIT_BACK_LEFT) { - if (colorMask == ~0) { - blit_mask |= BUFFER_BIT_BACK_LEFT; - } - else { - tri_mask |= BUFFER_BIT_BACK_LEFT; - } - } - - - if (mask & BUFFER_BIT_STENCIL) { - if (!intel->hw_stencil) { - swrast_mask |= BUFFER_BIT_STENCIL; - } - else if ((ctx->Stencil.WriteMask[0] & 0xff) != 0xff || - intel->depth_region->tiled) { - tri_mask |= BUFFER_BIT_STENCIL; - } - else { - blit_mask |= BUFFER_BIT_STENCIL; - } - } - - /* Do depth with stencil if possible to avoid 2nd pass over the - * same buffer. - */ - if (mask & BUFFER_BIT_DEPTH) { - if ((tri_mask & BUFFER_BIT_STENCIL) || - intel->depth_region->tiled) - tri_mask |= BUFFER_BIT_DEPTH; - else - blit_mask |= BUFFER_BIT_DEPTH; - } - - swrast_mask |= (mask & BUFFER_BIT_ACCUM); - - intelFlush( ctx ); - - if (blit_mask) - intelClearWithBlit( ctx, blit_mask ); - - if (tri_mask) - intelClearWithTris( intel, tri_mask ); - - if (swrast_mask) - _swrast_Clear( ctx, swrast_mask ); -} - - - - - - - -/* Flip the front & back buffers - */ -static void intelPageFlip( const __DRIdrawablePrivate *dPriv ) -{ -#if 0 - struct intel_context *intel; - int tmp, ret; - - if (INTEL_DEBUG & DEBUG_IOCTL) - fprintf(stderr, "%s\n", __FUNCTION__); - - assert(dPriv); - assert(dPriv->driContextPriv); - assert(dPriv->driContextPriv->driverPrivate); - - intel = (struct intel_context *) dPriv->driContextPriv->driverPrivate; - - intelFlush( &intel->ctx ); - LOCK_HARDWARE( intel ); - - if (dPriv->pClipRects) { - *(drm_clip_rect_t *)intel->sarea->boxes = dPriv->pClipRects[0]; - intel->sarea->nbox = 1; - } - - ret = drmCommandNone(intel->driFd, DRM_I830_FLIP); - if (ret) { - fprintf(stderr, "%s: %d\n", __FUNCTION__, ret); - UNLOCK_HARDWARE( intel ); - exit(1); - } - - tmp = intel->sarea->last_enqueue; - intelRefillBatchLocked( intel ); - UNLOCK_HARDWARE( intel ); - - - intelSetDrawBuffer( &intel->ctx, intel->ctx.Color.DriverDrawBuffer ); -#endif -} - - -void intelSwapBuffers( __DRIdrawablePrivate *dPriv ) -{ - if (dPriv->driContextPriv && dPriv->driContextPriv->driverPrivate) { - struct intel_context *intel; - GLcontext *ctx; - intel = (struct intel_context *) dPriv->driContextPriv->driverPrivate; - ctx = &intel->ctx; - if (ctx->Visual.doubleBufferMode) { - _mesa_notifySwapBuffers( ctx ); /* flush pending rendering comands */ - if ( 0 /*intel->doPageFlip*/ ) { /* doPageFlip is never set !!! */ - intelPageFlip( dPriv ); - } else { - intelCopyBuffer( dPriv, NULL ); - } - if (intel->aub_file) { - intelFlush(ctx); - intel->vtbl.aub_dump_bmp( intel, 1 ); - - intel->aub_wrap = 1; - } - } - } else { - /* XXX this shouldn't be an error but we can't handle it for now */ - fprintf(stderr, "%s: drawable has no context!\n", __FUNCTION__); - } -} - -void intelCopySubBuffer( __DRIdrawablePrivate *dPriv, - int x, int y, int w, int h ) -{ - if (dPriv->driContextPriv && dPriv->driContextPriv->driverPrivate) { - struct intel_context *intel = dPriv->driContextPriv->driverPrivate; - GLcontext *ctx = &intel->ctx; - - if (ctx->Visual.doubleBufferMode) { - drm_clip_rect_t rect; - rect.x1 = x + dPriv->x; - rect.y1 = (dPriv->h - y - h) + dPriv->y; - rect.x2 = rect.x1 + w; - rect.y2 = rect.y1 + h; - _mesa_notifySwapBuffers( ctx ); /* flush pending rendering comands */ - intelCopyBuffer( dPriv, &rect ); - } - } else { - /* XXX this shouldn't be an error but we can't handle it for now */ - fprintf(stderr, "%s: drawable has no context!\n", __FUNCTION__); - } -} - - -static void intelDrawBuffer(GLcontext *ctx, GLenum mode ) -{ - struct intel_context *intel = intel_context(ctx); - int front = 0; - - if (!ctx->DrawBuffer) - return; - - switch ( ctx->DrawBuffer->_ColorDrawBufferMask[0] ) { - case BUFFER_BIT_FRONT_LEFT: - front = 1; - FALLBACK( intel, INTEL_FALLBACK_DRAW_BUFFER, GL_FALSE ); - break; - case BUFFER_BIT_BACK_LEFT: - front = 0; - FALLBACK( intel, INTEL_FALLBACK_DRAW_BUFFER, GL_FALSE ); - break; - default: - FALLBACK( intel, INTEL_FALLBACK_DRAW_BUFFER, GL_TRUE ); - return; - } - - if ( intel->sarea->pf_current_page == 1 ) - front ^= 1; - - intelSetFrontClipRects( intel ); - - - if (front) { - if (intel->draw_region != intel->front_region) { - intel_region_release(intel, &intel->draw_region); - intel_region_reference(&intel->draw_region, intel->front_region); - } - } else { - if (intel->draw_region != intel->back_region) { - intel_region_release(intel, &intel->draw_region); - intel_region_reference(&intel->draw_region, intel->back_region); - } - } - - intel->vtbl.set_draw_region( intel, - intel->draw_region, - intel->depth_region); -} - -static void intelReadBuffer( GLcontext *ctx, GLenum mode ) -{ - /* nothing, until we implement h/w glRead/CopyPixels or CopyTexImage */ -} - - - -void intelInitBufferFuncs( struct dd_function_table *functions ) -{ - functions->Clear = intelClear; - functions->GetBufferSize = intelBufferSize; - functions->DrawBuffer = intelDrawBuffer; - functions->ReadBuffer = intelReadBuffer; -} +../intel/intel_buffers.c
\ No newline at end of file |