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author | marha <marha@users.sourceforge.net> | 2012-02-27 07:24:18 +0100 |
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committer | marha <marha@users.sourceforge.net> | 2012-02-27 07:24:18 +0100 |
commit | c4f44c07c6662d1ce08603945ccc4fa5afaa742a (patch) | |
tree | 5daa31bcbf8c90e74d99d679611a2d44f3ccede1 /mesalib/src/mesa/swrast/s_drawpix.c | |
parent | 5fb4fb602bde5140dcea45464e3b70a49078ad2e (diff) | |
download | vcxsrv-c4f44c07c6662d1ce08603945ccc4fa5afaa742a.tar.gz vcxsrv-c4f44c07c6662d1ce08603945ccc4fa5afaa742a.tar.bz2 vcxsrv-c4f44c07c6662d1ce08603945ccc4fa5afaa742a.zip |
fontconfig pixman mesa git update 27 Feb 2012
Diffstat (limited to 'mesalib/src/mesa/swrast/s_drawpix.c')
-rw-r--r-- | mesalib/src/mesa/swrast/s_drawpix.c | 77 |
1 files changed, 43 insertions, 34 deletions
diff --git a/mesalib/src/mesa/swrast/s_drawpix.c b/mesalib/src/mesa/swrast/s_drawpix.c index c19808bd4..1fa64c378 100644 --- a/mesalib/src/mesa/swrast/s_drawpix.c +++ b/mesalib/src/mesa/swrast/s_drawpix.c @@ -264,34 +264,35 @@ draw_stencil_pixels( struct gl_context *ctx, GLint x, GLint y, { const GLboolean zoom = ctx->Pixel.ZoomX != 1.0 || ctx->Pixel.ZoomY != 1.0; const GLenum destType = GL_UNSIGNED_BYTE; - GLint skipPixels; + GLint row; + GLubyte *values; - /* if width > MAX_WIDTH, have to process image in chunks */ - skipPixels = 0; - while (skipPixels < width) { - const GLint spanX = x + skipPixels; - const GLint spanWidth = MIN2(width - skipPixels, MAX_WIDTH); - GLint row; - for (row = 0; row < height; row++) { - const GLint spanY = y + row; - GLubyte values[MAX_WIDTH]; - const GLvoid *source = _mesa_image_address2d(unpack, pixels, - width, height, - GL_STENCIL_INDEX, type, - row, skipPixels); - _mesa_unpack_stencil_span(ctx, spanWidth, destType, values, - type, source, unpack, - ctx->_ImageTransferState); - if (zoom) { - _swrast_write_zoomed_stencil_span(ctx, x, y, spanWidth, - spanX, spanY, values); - } - else { - _swrast_write_stencil_span(ctx, spanWidth, spanX, spanY, values); - } + values = (GLubyte *) malloc(width * sizeof(GLubyte)); + if (!values) { + _mesa_error(ctx, GL_OUT_OF_MEMORY, "glDrawPixels"); + return; + } + + for (row = 0; row < height; row++) { + const GLvoid *source = _mesa_image_address2d(unpack, pixels, + width, height, + GL_STENCIL_INDEX, type, + row, 0); + _mesa_unpack_stencil_span(ctx, width, destType, values, + type, source, unpack, + ctx->_ImageTransferState); + if (zoom) { + _swrast_write_zoomed_stencil_span(ctx, x, y, width, + x, y, values); + } + else { + _swrast_write_stencil_span(ctx, width, x, y, values); } - skipPixels += spanWidth; + + y++; } + + free(values); } @@ -318,7 +319,7 @@ draw_depth_pixels( struct gl_context *ctx, GLint x, GLint y, && ctx->DrawBuffer->Visual.depthBits == 16 && !scaleOrBias && !zoom - && width <= MAX_WIDTH + && width <= SWRAST_MAX_WIDTH && !unpack->SwapBytes) { /* Special case: directly write 16-bit depth values */ GLint row; @@ -338,7 +339,7 @@ draw_depth_pixels( struct gl_context *ctx, GLint x, GLint y, else if (type == GL_UNSIGNED_INT && !scaleOrBias && !zoom - && width <= MAX_WIDTH + && width <= SWRAST_MAX_WIDTH && !unpack->SwapBytes) { /* Special case: shift 32-bit values down to Visual.depthBits */ const GLint shift = 32 - ctx->DrawBuffer->Visual.depthBits; @@ -366,11 +367,11 @@ draw_depth_pixels( struct gl_context *ctx, GLint x, GLint y, const GLuint depthMax = ctx->DrawBuffer->_DepthMax; GLint skipPixels = 0; - /* in case width > MAX_WIDTH do the copy in chunks */ + /* in case width > SWRAST_MAX_WIDTH do the copy in chunks */ while (skipPixels < width) { - const GLint spanWidth = MIN2(width - skipPixels, MAX_WIDTH); + const GLint spanWidth = MIN2(width - skipPixels, SWRAST_MAX_WIDTH); GLint row; - ASSERT(span.end <= MAX_WIDTH); + ASSERT(span.end <= SWRAST_MAX_WIDTH); for (row = 0; row < height; row++) { const GLvoid *zSrc = _mesa_image_address2d(unpack, pixels, width, height, @@ -452,9 +453,9 @@ draw_rgba_pixels( struct gl_context *ctx, GLint x, GLint y, /* use span array for temp color storage */ GLfloat *rgba = (GLfloat *) span.array->attribs[FRAG_ATTRIB_COL0]; - /* if the span is wider than MAX_WIDTH we have to do it in chunks */ + /* if the span is wider than SWRAST_MAX_WIDTH we have to do it in chunks */ while (skipPixels < width) { - const GLint spanWidth = MIN2(width - skipPixels, MAX_WIDTH); + const GLint spanWidth = MIN2(width - skipPixels, SWRAST_MAX_WIDTH); const GLubyte *source = (const GLubyte *) _mesa_image_address2d(unpack, pixels, width, height, format, @@ -588,15 +589,21 @@ draw_depth_stencil_pixels(struct gl_context *ctx, GLint x, GLint y, * Separate depth/stencil buffers, or pixel transfer ops required. */ /* XXX need to handle very wide images (skippixels) */ + GLuint *zValues; /* 32-bit Z values */ GLint i; + zValues = (GLuint *) malloc(width * sizeof(GLuint)); + if (!zValues) { + _mesa_error(ctx, GL_OUT_OF_MEMORY, "glDrawPixels"); + return; + } + for (i = 0; i < height; i++) { const GLuint *depthStencilSrc = (const GLuint *) _mesa_image_address2d(&clippedUnpack, pixels, width, height, GL_DEPTH_STENCIL_EXT, type, i, 0); if (ctx->Depth.Mask) { - GLuint zValues[MAX_WIDTH]; /* 32-bit Z values */ _mesa_unpack_depth_span(ctx, width, GL_UNSIGNED_INT, /* dest type */ zValues, /* dest addr */ @@ -615,7 +622,7 @@ draw_depth_stencil_pixels(struct gl_context *ctx, GLint x, GLint y, } if (stencilMask != 0x0) { - GLubyte stencilValues[MAX_WIDTH]; + GLubyte *stencilValues = (GLubyte *) zValues; /* re-use buffer */ /* get stencil values, with shift/offset/mapping */ _mesa_unpack_stencil_span(ctx, width, stencilType, stencilValues, type, depthStencilSrc, &clippedUnpack, @@ -627,6 +634,8 @@ draw_depth_stencil_pixels(struct gl_context *ctx, GLint x, GLint y, _swrast_write_stencil_span(ctx, width, x, y + i, stencilValues); } } + + free(zValues); } } |