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Diffstat (limited to 'src/mesa/main/image.c')
-rw-r--r--src/mesa/main/image.c88
1 files changed, 88 insertions, 0 deletions
diff --git a/src/mesa/main/image.c b/src/mesa/main/image.c
index 029d2fef8a..1992c7448b 100644
--- a/src/mesa/main/image.c
+++ b/src/mesa/main/image.c
@@ -286,6 +286,7 @@ _mesa_components_in_format( GLenum format )
return 1;
case GL_LUMINANCE_ALPHA:
case GL_LUMINANCE_ALPHA_INTEGER_EXT:
+ case GL_RG:
return 2;
case GL_RGB:
case GL_RGB_INTEGER_EXT:
@@ -442,6 +443,24 @@ _mesa_is_legal_format_and_type( GLcontext *ctx, GLenum format, GLenum type )
default:
return GL_FALSE;
}
+ case GL_RG:
+ if (!ctx->Extensions.ARB_texture_rg)
+ return GL_FALSE;
+
+ switch (type) {
+ case GL_BYTE:
+ case GL_UNSIGNED_BYTE:
+ case GL_SHORT:
+ case GL_UNSIGNED_SHORT:
+ case GL_INT:
+ case GL_UNSIGNED_INT:
+ case GL_FLOAT:
+ return GL_TRUE;
+ case GL_HALF_FLOAT_ARB:
+ return ctx->Extensions.ARB_half_float_pixel;
+ default:
+ return GL_FALSE;
+ }
case GL_RGB:
switch (type) {
case GL_BYTE:
@@ -596,6 +615,11 @@ _mesa_is_color_format(GLenum format)
case GL_INTENSITY8:
case GL_INTENSITY12:
case GL_INTENSITY16:
+ case GL_R8:
+ case GL_R16:
+ case GL_RG:
+ case GL_RG8:
+ case GL_RG16:
case 3:
case GL_RGB:
case GL_BGR:
@@ -626,6 +650,10 @@ _mesa_is_color_format(GLenum format)
case GL_LUMINANCE_ALPHA32F_ARB:
case GL_INTENSITY16F_ARB:
case GL_INTENSITY32F_ARB:
+ case GL_R16F:
+ case GL_R32F:
+ case GL_RG16F:
+ case GL_RG32F:
case GL_RGB16F_ARB:
case GL_RGB32F_ARB:
case GL_RGBA16F_ARB:
@@ -1585,6 +1613,25 @@ _mesa_lookup_rgba_float(const struct gl_color_table *table,
rgba[i][ACOMP] = alpha;;
}
break;
+ case GL_RED:
+ /* replace RGB with RGB */
+ for (i = 0; i < n; i++) {
+ GLint jR = IROUND(rgba[i][RCOMP] * scale);
+ jR = CLAMP(jR, 0, max);
+ rgba[i][RCOMP] = lut[jR * 3 + 0];
+ }
+ break;
+ case GL_RG:
+ /* replace RG with RG */
+ for (i = 0; i < n; i++) {
+ GLint jR = IROUND(rgba[i][RCOMP] * scale);
+ GLint jG = IROUND(rgba[i][GCOMP] * scale);
+ jR = CLAMP(jR, 0, max);
+ jG = CLAMP(jG, 0, max);
+ rgba[i][RCOMP] = lut[jR * 3 + 0];
+ rgba[i][GCOMP] = lut[jG * 3 + 1];
+ }
+ break;
case GL_RGB:
/* replace RGB with RGB */
for (i = 0; i < n; i++) {
@@ -3201,6 +3248,7 @@ extract_float_rgba(GLuint n, GLfloat rgba[][4],
srcFormat == GL_LUMINANCE ||
srcFormat == GL_LUMINANCE_ALPHA ||
srcFormat == GL_INTENSITY ||
+ srcFormat == GL_RG ||
srcFormat == GL_RGB ||
srcFormat == GL_BGR ||
srcFormat == GL_RGBA ||
@@ -3283,6 +3331,18 @@ extract_float_rgba(GLuint n, GLfloat rgba[][4],
redIndex = greenIndex = blueIndex = alphaIndex = 0;
stride = 1;
break;
+ case GL_RG:
+ case GL_RG_INTEGER:
+ redIndex = 0;
+ greenIndex = 1;
+ blueIndex = -1;
+ alphaIndex = -1;
+ rComp = 0;
+ gComp = 1;
+ bComp = 2;
+ aComp = 3;
+ stride = 2;
+ break;
case GL_RGB:
case GL_RGB_INTEGER:
redIndex = 0;
@@ -3852,6 +3912,8 @@ _mesa_unpack_color_span_chan( GLcontext *ctx,
dstFormat == GL_LUMINANCE ||
dstFormat == GL_LUMINANCE_ALPHA ||
dstFormat == GL_INTENSITY ||
+ dstFormat == GL_RED ||
+ dstFormat == GL_RG ||
dstFormat == GL_RGB ||
dstFormat == GL_RGBA ||
dstFormat == GL_COLOR_INDEX);
@@ -3863,6 +3925,7 @@ _mesa_unpack_color_span_chan( GLcontext *ctx,
srcFormat == GL_LUMINANCE ||
srcFormat == GL_LUMINANCE_ALPHA ||
srcFormat == GL_INTENSITY ||
+ srcFormat == GL_RG ||
srcFormat == GL_RGB ||
srcFormat == GL_BGR ||
srcFormat == GL_RGBA ||
@@ -4090,6 +4153,17 @@ _mesa_unpack_color_span_chan( GLcontext *ctx,
dstRedIndex = dstGreenIndex = dstBlueIndex = dstAlphaIndex = -1;
dstLuminanceIndex = -1;
break;
+ case GL_RED:
+ dstRedIndex = 0;
+ dstGreenIndex = dstBlueIndex = -1;
+ dstAlphaIndex = dstLuminanceIndex = dstIntensityIndex = -1;
+ break;
+ case GL_RG:
+ dstRedIndex = 0;
+ dstGreenIndex = 1;
+ dstBlueIndex = -1;
+ dstAlphaIndex = dstLuminanceIndex = dstIntensityIndex = -1;
+ break;
case GL_RGB:
dstRedIndex = 0;
dstGreenIndex = 1;
@@ -4188,6 +4262,8 @@ _mesa_unpack_color_span_float( GLcontext *ctx,
dstFormat == GL_LUMINANCE ||
dstFormat == GL_LUMINANCE_ALPHA ||
dstFormat == GL_INTENSITY ||
+ dstFormat == GL_RED ||
+ dstFormat == GL_RG ||
dstFormat == GL_RGB ||
dstFormat == GL_RGBA ||
dstFormat == GL_COLOR_INDEX);
@@ -4199,6 +4275,7 @@ _mesa_unpack_color_span_float( GLcontext *ctx,
srcFormat == GL_LUMINANCE ||
srcFormat == GL_LUMINANCE_ALPHA ||
srcFormat == GL_INTENSITY ||
+ srcFormat == GL_RG ||
srcFormat == GL_RGB ||
srcFormat == GL_BGR ||
srcFormat == GL_RGBA ||
@@ -4315,6 +4392,17 @@ _mesa_unpack_color_span_float( GLcontext *ctx,
dstRedIndex = dstGreenIndex = dstBlueIndex = dstAlphaIndex = -1;
dstLuminanceIndex = -1;
break;
+ case GL_RED:
+ dstRedIndex = 0;
+ dstGreenIndex = dstBlueIndex = -1;
+ dstAlphaIndex = dstLuminanceIndex = dstIntensityIndex = -1;
+ break;
+ case GL_RG:
+ dstRedIndex = 0;
+ dstGreenIndex = 1;
+ dstBlueIndex = -1;
+ dstAlphaIndex = dstLuminanceIndex = dstIntensityIndex = -1;
+ break;
case GL_RGB:
dstRedIndex = 0;
dstGreenIndex = 1;