- i830ContextPtr i830 = I830_CONTEXT( intel );
- intelScreenPrivate *screen = intel->intelScreen;
- const GLuint cpp = screen->cpp;
- drm_clip_rect_t fullRect;
- GLuint textureFormat, srcOffset, srcPitch;
- const drm_clip_rect_t *clipRects;
- int numClipRects;
- int i;
-
- int xOrig, yOrig;
- int origNumClipRects;
- drm_clip_rect_t *origRects;
-
- /*
- * set up hardware state
- */
- intelFlush( &intel->ctx );
-
- SET_STATE( i830, meta );
- set_initial_state( i830 );
- set_no_texture( i830 );
- set_vertex_format( i830 );
- set_no_depth_stencil_write( i830 );
- set_color_mask( i830, GL_FALSE );
-
- LOCK_HARDWARE(intel);
-
- /* save current drawing origin and cliprects (restored at end) */
- xOrig = intel->drawX;
- yOrig = intel->drawY;
- origNumClipRects = intel->numClipRects;
- origRects = intel->pClipRects;
-
- if (!intel->numClipRects)
- goto done;
-
- /*
- * set drawing origin, cliprects for full-screen access to rotated screen
- */
- fullRect.x1 = 0;
- fullRect.y1 = 0;
- fullRect.x2 = screen->rotatedWidth;
- fullRect.y2 = screen->rotatedHeight;
- intel->drawX = 0;
- intel->drawY = 0;
- intel->numClipRects = 1;
- intel->pClipRects = &fullRect;
-
- set_draw_region( i830, &screen->rotated );
-
- if (cpp == 4)
- textureFormat = MAPSURF_32BIT | MT_32BIT_ARGB8888;
- else
- textureFormat = MAPSURF_16BIT | MT_16BIT_RGB565;
-
- if (srcBuf == BUFFER_BIT_FRONT_LEFT) {
- srcPitch = screen->front.pitch; /* in bytes */
- srcOffset = screen->front.offset; /* bytes */
- clipRects = dPriv->pClipRects;
- numClipRects = dPriv->numClipRects;
- }
- else {
- srcPitch = screen->back.pitch; /* in bytes */
- srcOffset = screen->back.offset; /* bytes */
- clipRects = dPriv->pBackClipRects;
- numClipRects = dPriv->numBackClipRects;
- }
-
- /* set the whole screen up as a texture to avoid alignment issues */
- set_tex_rect_source(i830,
- srcOffset,
- screen->width,
- screen->height,
- srcPitch,
- textureFormat);
-
- enable_texture_blend_replace(i830);
-
- /*
- * loop over the source window's cliprects
- */
- for (i = 0; i < numClipRects; i++) {
- int srcX0 = clipRects[i].x1;
- int srcY0 = clipRects[i].y1;
- int srcX1 = clipRects[i].x2;
- int srcY1 = clipRects[i].y2;
- GLfloat verts[4][2], tex[4][2];
- int j;
-
- /* build vertices for four corners of clip rect */
- verts[0][0] = srcX0; verts[0][1] = srcY0;
- verts[1][0] = srcX1; verts[1][1] = srcY0;
- verts[2][0] = srcX1; verts[2][1] = srcY1;
- verts[3][0] = srcX0; verts[3][1] = srcY1;
-
- /* .. and texcoords */
- tex[0][0] = srcX0; tex[0][1] = srcY0;
- tex[1][0] = srcX1; tex[1][1] = srcY0;
- tex[2][0] = srcX1; tex[2][1] = srcY1;
- tex[3][0] = srcX0; tex[3][1] = srcY1;
-
- /* transform coords to rotated screen coords */
-
- for (j = 0; j < 4; j++) {
- matrix23TransformCoordf(&screen->rotMatrix,
- &verts[j][0], &verts[j][1]);
- }
-
- /* draw polygon to map source image to dest region */
- draw_poly(i830, 255, 255, 255, 255, 4, verts, tex);
-
- } /* cliprect loop */
-
- intelFlushBatchLocked( intel, GL_FALSE, GL_FALSE, GL_FALSE );
-
- done:
- /* restore original drawing origin and cliprects */
- intel->drawX = xOrig;
- intel->drawY = yOrig;
- intel->numClipRects = origNumClipRects;
- intel->pClipRects = origRects;
-
- UNLOCK_HARDWARE(intel);
-
- SET_STATE( i830, state );