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-rw-r--r--src/glx/x11/compsize.c245
1 files changed, 125 insertions, 120 deletions
diff --git a/src/glx/x11/compsize.c b/src/glx/x11/compsize.c
index d25396f680..f8f453d891 100644
--- a/src/glx/x11/compsize.c
+++ b/src/glx/x11/compsize.c
@@ -36,151 +36,156 @@
/*
** Return the number of elements per group of a specified format
*/
-GLint __glElementsPerGroup(GLenum format, GLenum type)
+GLint
+__glElementsPerGroup(GLenum format, GLenum type)
{
- /*
+ /*
** To make row length computation valid for image extraction,
** packed pixel types assume elements per group equals one.
*/
- switch(type) {
- case GL_UNSIGNED_BYTE_3_3_2:
- case GL_UNSIGNED_BYTE_2_3_3_REV:
- case GL_UNSIGNED_SHORT_5_6_5:
- case GL_UNSIGNED_SHORT_5_6_5_REV:
- case GL_UNSIGNED_SHORT_4_4_4_4:
- case GL_UNSIGNED_SHORT_4_4_4_4_REV:
- case GL_UNSIGNED_SHORT_5_5_5_1:
- case GL_UNSIGNED_SHORT_1_5_5_5_REV:
- case GL_UNSIGNED_SHORT_8_8_APPLE:
- case GL_UNSIGNED_SHORT_8_8_REV_APPLE:
- case GL_UNSIGNED_SHORT_15_1_MESA:
- case GL_UNSIGNED_SHORT_1_15_REV_MESA:
- case GL_UNSIGNED_INT_8_8_8_8:
- case GL_UNSIGNED_INT_8_8_8_8_REV:
- case GL_UNSIGNED_INT_10_10_10_2:
- case GL_UNSIGNED_INT_2_10_10_10_REV:
- case GL_UNSIGNED_INT_24_8_NV:
- case GL_UNSIGNED_INT_24_8_MESA:
- case GL_UNSIGNED_INT_8_24_REV_MESA:
+ switch (type) {
+ case GL_UNSIGNED_BYTE_3_3_2:
+ case GL_UNSIGNED_BYTE_2_3_3_REV:
+ case GL_UNSIGNED_SHORT_5_6_5:
+ case GL_UNSIGNED_SHORT_5_6_5_REV:
+ case GL_UNSIGNED_SHORT_4_4_4_4:
+ case GL_UNSIGNED_SHORT_4_4_4_4_REV:
+ case GL_UNSIGNED_SHORT_5_5_5_1:
+ case GL_UNSIGNED_SHORT_1_5_5_5_REV:
+ case GL_UNSIGNED_SHORT_8_8_APPLE:
+ case GL_UNSIGNED_SHORT_8_8_REV_APPLE:
+ case GL_UNSIGNED_SHORT_15_1_MESA:
+ case GL_UNSIGNED_SHORT_1_15_REV_MESA:
+ case GL_UNSIGNED_INT_8_8_8_8:
+ case GL_UNSIGNED_INT_8_8_8_8_REV:
+ case GL_UNSIGNED_INT_10_10_10_2:
+ case GL_UNSIGNED_INT_2_10_10_10_REV:
+ case GL_UNSIGNED_INT_24_8_NV:
+ case GL_UNSIGNED_INT_24_8_MESA:
+ case GL_UNSIGNED_INT_8_24_REV_MESA:
return 1;
- default:
+ default:
break;
- }
+ }
- switch(format) {
- case GL_RGB:
- case GL_BGR:
- return 3;
- case GL_422_EXT:
- case GL_422_REV_EXT:
- case GL_422_AVERAGE_EXT:
- case GL_422_REV_AVERAGE_EXT:
- case GL_YCBCR_422_APPLE:
- case GL_LUMINANCE_ALPHA:
- return 2;
- case GL_RGBA:
- case GL_BGRA:
- case GL_ABGR_EXT:
- return 4;
- case GL_COLOR_INDEX:
- case GL_STENCIL_INDEX:
- case GL_DEPTH_COMPONENT:
- case GL_RED:
- case GL_GREEN:
- case GL_BLUE:
- case GL_ALPHA:
- case GL_LUMINANCE:
- case GL_INTENSITY:
- return 1;
- default:
- return 0;
- }
+ switch (format) {
+ case GL_RGB:
+ case GL_BGR:
+ return 3;
+ case GL_422_EXT:
+ case GL_422_REV_EXT:
+ case GL_422_AVERAGE_EXT:
+ case GL_422_REV_AVERAGE_EXT:
+ case GL_YCBCR_422_APPLE:
+ case GL_LUMINANCE_ALPHA:
+ return 2;
+ case GL_RGBA:
+ case GL_BGRA:
+ case GL_ABGR_EXT:
+ return 4;
+ case GL_COLOR_INDEX:
+ case GL_STENCIL_INDEX:
+ case GL_DEPTH_COMPONENT:
+ case GL_RED:
+ case GL_GREEN:
+ case GL_BLUE:
+ case GL_ALPHA:
+ case GL_LUMINANCE:
+ case GL_INTENSITY:
+ return 1;
+ default:
+ return 0;
+ }
}
/*
** Return the number of bytes per element, based on the element type (other
** than GL_BITMAP).
*/
-GLint __glBytesPerElement(GLenum type)
+GLint
+__glBytesPerElement(GLenum type)
{
- switch(type) {
- case GL_UNSIGNED_SHORT:
- case GL_SHORT:
- case GL_UNSIGNED_SHORT_5_6_5:
- case GL_UNSIGNED_SHORT_5_6_5_REV:
- case GL_UNSIGNED_SHORT_4_4_4_4:
- case GL_UNSIGNED_SHORT_4_4_4_4_REV:
- case GL_UNSIGNED_SHORT_5_5_5_1:
- case GL_UNSIGNED_SHORT_1_5_5_5_REV:
- case GL_UNSIGNED_SHORT_8_8_APPLE:
- case GL_UNSIGNED_SHORT_8_8_REV_APPLE:
- case GL_UNSIGNED_SHORT_15_1_MESA:
- case GL_UNSIGNED_SHORT_1_15_REV_MESA:
- return 2;
- case GL_UNSIGNED_BYTE:
- case GL_BYTE:
- case GL_UNSIGNED_BYTE_3_3_2:
- case GL_UNSIGNED_BYTE_2_3_3_REV:
- return 1;
- case GL_INT:
- case GL_UNSIGNED_INT:
- case GL_FLOAT:
- case GL_UNSIGNED_INT_8_8_8_8:
- case GL_UNSIGNED_INT_8_8_8_8_REV:
- case GL_UNSIGNED_INT_10_10_10_2:
- case GL_UNSIGNED_INT_2_10_10_10_REV:
- case GL_UNSIGNED_INT_24_8_NV:
- case GL_UNSIGNED_INT_24_8_MESA:
- case GL_UNSIGNED_INT_8_24_REV_MESA:
- return 4;
- default:
- return 0;
- }
+ switch (type) {
+ case GL_UNSIGNED_SHORT:
+ case GL_SHORT:
+ case GL_UNSIGNED_SHORT_5_6_5:
+ case GL_UNSIGNED_SHORT_5_6_5_REV:
+ case GL_UNSIGNED_SHORT_4_4_4_4:
+ case GL_UNSIGNED_SHORT_4_4_4_4_REV:
+ case GL_UNSIGNED_SHORT_5_5_5_1:
+ case GL_UNSIGNED_SHORT_1_5_5_5_REV:
+ case GL_UNSIGNED_SHORT_8_8_APPLE:
+ case GL_UNSIGNED_SHORT_8_8_REV_APPLE:
+ case GL_UNSIGNED_SHORT_15_1_MESA:
+ case GL_UNSIGNED_SHORT_1_15_REV_MESA:
+ return 2;
+ case GL_UNSIGNED_BYTE:
+ case GL_BYTE:
+ case GL_UNSIGNED_BYTE_3_3_2:
+ case GL_UNSIGNED_BYTE_2_3_3_REV:
+ return 1;
+ case GL_INT:
+ case GL_UNSIGNED_INT:
+ case GL_FLOAT:
+ case GL_UNSIGNED_INT_8_8_8_8:
+ case GL_UNSIGNED_INT_8_8_8_8_REV:
+ case GL_UNSIGNED_INT_10_10_10_2:
+ case GL_UNSIGNED_INT_2_10_10_10_REV:
+ case GL_UNSIGNED_INT_24_8_NV:
+ case GL_UNSIGNED_INT_24_8_MESA:
+ case GL_UNSIGNED_INT_8_24_REV_MESA:
+ return 4;
+ default:
+ return 0;
+ }
}
/*
** Compute memory required for internal packed array of data of given type
** and format.
*/
-GLint __glImageSize(GLsizei width, GLsizei height, GLsizei depth,
- GLenum format, GLenum type, GLenum target)
+GLint
+__glImageSize(GLsizei width, GLsizei height, GLsizei depth,
+ GLenum format, GLenum type, GLenum target)
{
- int bytes_per_row;
- int components;
+ int bytes_per_row;
+ int components;
- switch( target ) {
- case GL_PROXY_TEXTURE_1D:
- case GL_PROXY_TEXTURE_2D:
- case GL_PROXY_TEXTURE_3D:
- case GL_PROXY_TEXTURE_4D_SGIS:
- case GL_PROXY_TEXTURE_CUBE_MAP:
- case GL_PROXY_TEXTURE_RECTANGLE_ARB:
- case GL_PROXY_HISTOGRAM:
- case GL_PROXY_COLOR_TABLE:
- case GL_PROXY_TEXTURE_COLOR_TABLE_SGI:
- case GL_PROXY_POST_CONVOLUTION_COLOR_TABLE:
- case GL_PROXY_POST_COLOR_MATRIX_COLOR_TABLE:
- case GL_PROXY_POST_IMAGE_TRANSFORM_COLOR_TABLE_HP:
- return 0;
- }
+ switch (target) {
+ case GL_PROXY_TEXTURE_1D:
+ case GL_PROXY_TEXTURE_2D:
+ case GL_PROXY_TEXTURE_3D:
+ case GL_PROXY_TEXTURE_4D_SGIS:
+ case GL_PROXY_TEXTURE_CUBE_MAP:
+ case GL_PROXY_TEXTURE_RECTANGLE_ARB:
+ case GL_PROXY_HISTOGRAM:
+ case GL_PROXY_COLOR_TABLE:
+ case GL_PROXY_TEXTURE_COLOR_TABLE_SGI:
+ case GL_PROXY_POST_CONVOLUTION_COLOR_TABLE:
+ case GL_PROXY_POST_COLOR_MATRIX_COLOR_TABLE:
+ case GL_PROXY_POST_IMAGE_TRANSFORM_COLOR_TABLE_HP:
+ return 0;
+ }
- if (width < 0 || height < 0 || depth < 0) {
- return 0;
- }
+ if (width < 0 || height < 0 || depth < 0) {
+ return 0;
+ }
- /*
+ /*
** Zero is returned if either format or type are invalid.
*/
- components = __glElementsPerGroup(format,type);
- if (type == GL_BITMAP) {
- if (format == GL_COLOR_INDEX || format == GL_STENCIL_INDEX) {
- bytes_per_row = (width + 7) >> 3;
- } else {
- return 0;
- }
- } else {
- bytes_per_row = __glBytesPerElement(type) * width;
- }
+ components = __glElementsPerGroup(format, type);
+ if (type == GL_BITMAP) {
+ if (format == GL_COLOR_INDEX || format == GL_STENCIL_INDEX) {
+ bytes_per_row = (width + 7) >> 3;
+ }
+ else {
+ return 0;
+ }
+ }
+ else {
+ bytes_per_row = __glBytesPerElement(type) * width;
+ }
- return bytes_per_row * height * depth * components;
+ return bytes_per_row * height * depth * components;
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-14 07:40:22 +0000