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path: root/mesalib/src/mesa/state_tracker/st_cb_drawpixels.c
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Diffstat (limited to 'mesalib/src/mesa/state_tracker/st_cb_drawpixels.c')
-rw-r--r--mesalib/src/mesa/state_tracker/st_cb_drawpixels.c55
1 files changed, 29 insertions, 26 deletions
diff --git a/mesalib/src/mesa/state_tracker/st_cb_drawpixels.c b/mesalib/src/mesa/state_tracker/st_cb_drawpixels.c
index de4c189a8..18d0e53d4 100644
--- a/mesalib/src/mesa/state_tracker/st_cb_drawpixels.c
+++ b/mesalib/src/mesa/state_tracker/st_cb_drawpixels.c
@@ -824,9 +824,10 @@ draw_stencil_pixels(struct gl_context *ctx, GLint x, GLint y,
enum pipe_transfer_usage usage;
struct pipe_transfer *pt;
const GLboolean zoom = ctx->Pixel.ZoomX != 1.0 || ctx->Pixel.ZoomY != 1.0;
- GLint skipPixels;
ubyte *stmap;
struct gl_pixelstore_attrib clippedUnpack = *unpack;
+ GLubyte *sValues;
+ GLuint *zValues;
if (!zoom) {
if (!_mesa_clip_drawpixels(ctx, &x, &y, &width, &height,
@@ -862,22 +863,19 @@ draw_stencil_pixels(struct gl_context *ctx, GLint x, GLint y,
pixels = _mesa_map_pbo_source(ctx, &clippedUnpack, pixels);
assert(pixels);
- /* if width > MAX_WIDTH, have to process image in chunks */
- skipPixels = 0;
- while (skipPixels < width) {
- const GLint spanX = skipPixels;
- const GLint spanWidth = MIN2(width - skipPixels, MAX_WIDTH);
+ sValues = (GLubyte *) malloc(width * sizeof(GLubyte));
+ zValues = (GLuint *) malloc(width * sizeof(GLuint));
+
+ if (sValues && zValues) {
GLint row;
for (row = 0; row < height; row++) {
- GLubyte sValues[MAX_WIDTH];
- GLuint zValues[MAX_WIDTH];
GLfloat *zValuesFloat = (GLfloat*)zValues;
GLenum destType = GL_UNSIGNED_BYTE;
const GLvoid *source = _mesa_image_address2d(&clippedUnpack, pixels,
width, height,
format, type,
- row, skipPixels);
- _mesa_unpack_stencil_span(ctx, spanWidth, destType, sValues,
+ row, 0);
+ _mesa_unpack_stencil_span(ctx, width, destType, sValues,
type, source, &clippedUnpack,
ctx->_ImageTransferState);
@@ -886,7 +884,7 @@ draw_stencil_pixels(struct gl_context *ctx, GLint x, GLint y,
pt->resource->format == PIPE_FORMAT_Z32_FLOAT_S8X24_UINT ?
GL_FLOAT : GL_UNSIGNED_INT;
- _mesa_unpack_depth_span(ctx, spanWidth, ztype, zValues,
+ _mesa_unpack_depth_span(ctx, width, ztype, zValues,
(1 << 24) - 1, type, source,
&clippedUnpack);
}
@@ -910,63 +908,63 @@ draw_stencil_pixels(struct gl_context *ctx, GLint x, GLint y,
switch (pt->resource->format) {
case PIPE_FORMAT_S8_UINT:
{
- ubyte *dest = stmap + spanY * pt->stride + spanX;
+ ubyte *dest = stmap + spanY * pt->stride;
assert(usage == PIPE_TRANSFER_WRITE);
- memcpy(dest, sValues, spanWidth);
+ memcpy(dest, sValues, width);
}
break;
case PIPE_FORMAT_Z24_UNORM_S8_UINT:
if (format == GL_DEPTH_STENCIL) {
- uint *dest = (uint *) (stmap + spanY * pt->stride + spanX*4);
+ uint *dest = (uint *) (stmap + spanY * pt->stride);
GLint k;
assert(usage == PIPE_TRANSFER_WRITE);
- for (k = 0; k < spanWidth; k++) {
+ for (k = 0; k < width; k++) {
dest[k] = zValues[k] | (sValues[k] << 24);
}
}
else {
- uint *dest = (uint *) (stmap + spanY * pt->stride + spanX*4);
+ uint *dest = (uint *) (stmap + spanY * pt->stride);
GLint k;
assert(usage == PIPE_TRANSFER_READ_WRITE);
- for (k = 0; k < spanWidth; k++) {
+ for (k = 0; k < width; k++) {
dest[k] = (dest[k] & 0xffffff) | (sValues[k] << 24);
}
}
break;
case PIPE_FORMAT_S8_UINT_Z24_UNORM:
if (format == GL_DEPTH_STENCIL) {
- uint *dest = (uint *) (stmap + spanY * pt->stride + spanX*4);
+ uint *dest = (uint *) (stmap + spanY * pt->stride);
GLint k;
assert(usage == PIPE_TRANSFER_WRITE);
- for (k = 0; k < spanWidth; k++) {
+ for (k = 0; k < width; k++) {
dest[k] = (zValues[k] << 8) | (sValues[k] & 0xff);
}
}
else {
- uint *dest = (uint *) (stmap + spanY * pt->stride + spanX*4);
+ uint *dest = (uint *) (stmap + spanY * pt->stride);
GLint k;
assert(usage == PIPE_TRANSFER_READ_WRITE);
- for (k = 0; k < spanWidth; k++) {
+ for (k = 0; k < width; k++) {
dest[k] = (dest[k] & 0xffffff00) | (sValues[k] & 0xff);
}
}
break;
case PIPE_FORMAT_Z32_FLOAT_S8X24_UINT:
if (format == GL_DEPTH_STENCIL) {
- uint *dest = (uint *) (stmap + spanY * pt->stride + spanX*4);
+ uint *dest = (uint *) (stmap + spanY * pt->stride);
GLfloat *destf = (GLfloat*)dest;
GLint k;
assert(usage == PIPE_TRANSFER_WRITE);
- for (k = 0; k < spanWidth; k++) {
+ for (k = 0; k < width; k++) {
destf[k*2] = zValuesFloat[k];
dest[k*2+1] = sValues[k] & 0xff;
}
}
else {
- uint *dest = (uint *) (stmap + spanY * pt->stride + spanX*4);
+ uint *dest = (uint *) (stmap + spanY * pt->stride);
GLint k;
assert(usage == PIPE_TRANSFER_READ_WRITE);
- for (k = 0; k < spanWidth; k++) {
+ for (k = 0; k < width; k++) {
dest[k*2+1] = sValues[k] & 0xff;
}
}
@@ -976,8 +974,13 @@ draw_stencil_pixels(struct gl_context *ctx, GLint x, GLint y,
}
}
}
- skipPixels += spanWidth;
}
+ else {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "glDrawPixels()");
+ }
+
+ free(sValues);
+ free(zValues);
_mesa_unmap_pbo_source(ctx, &clippedUnpack);