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-rw-r--r--src/mesa/main/texrender.c54
1 files changed, 54 insertions, 0 deletions
diff --git a/src/mesa/main/texrender.c b/src/mesa/main/texrender.c
index 4ae13a7b9b..49de6f5b8a 100644
--- a/src/mesa/main/texrender.c
+++ b/src/mesa/main/texrender.c
@@ -194,6 +194,59 @@ texture_put_row(GLcontext *ctx, struct gl_renderbuffer *rb, GLuint count,
}
}
+/**
+ * Put row of RGB values into a renderbuffer that wraps a texture image.
+ */
+static void
+texture_put_row_rgb(GLcontext *ctx, struct gl_renderbuffer *rb, GLuint count,
+ GLint x, GLint y, const void *values, const GLubyte *mask)
+{
+ const struct texture_renderbuffer *trb
+ = (const struct texture_renderbuffer *) rb;
+ const GLint z = trb->Zoffset;
+ GLuint i;
+
+ y += trb->Yoffset;
+
+ if (rb->DataType == CHAN_TYPE) {
+ const GLchan *rgb = (const GLchan *) values;
+ for (i = 0; i < count; i++) {
+ if (!mask || mask[i]) {
+ trb->Store(trb->TexImage, x + i, y, z, rgb);
+ }
+ rgb += 3;
+ }
+ }
+ else if (rb->DataType == GL_UNSIGNED_SHORT) {
+ const GLushort *zValues = (const GLushort *) values;
+ for (i = 0; i < count; i++) {
+ if (!mask || mask[i]) {
+ trb->Store(trb->TexImage, x + i, y, z, zValues + i);
+ }
+ }
+ }
+ else if (rb->DataType == GL_UNSIGNED_INT) {
+ const GLuint *zValues = (const GLuint *) values;
+ for (i = 0; i < count; i++) {
+ if (!mask || mask[i]) {
+ trb->Store(trb->TexImage, x + i, y, z, zValues + i);
+ }
+ }
+ }
+ else if (rb->DataType == GL_UNSIGNED_INT_24_8_EXT) {
+ const GLuint *zValues = (const GLuint *) values;
+ for (i = 0; i < count; i++) {
+ if (!mask || mask[i]) {
+ GLfloat flt = (GLfloat) ((zValues[i] >> 8) * (1.0 / 0xffffff));
+ trb->Store(trb->TexImage, x + i, y, z, &flt);
+ }
+ }
+ }
+ else {
+ _mesa_problem(ctx, "invalid rb->DataType in texture_put_row");
+ }
+}
+
static void
texture_put_mono_row(GLcontext *ctx, struct gl_renderbuffer *rb, GLuint count,
@@ -380,6 +433,7 @@ wrap_texture(GLcontext *ctx, struct gl_renderbuffer_attachment *att)
trb->Base.GetRow = texture_get_row;
trb->Base.GetValues = texture_get_values;
trb->Base.PutRow = texture_put_row;
+ trb->Base.PutRowRGB = texture_put_row_rgb;
trb->Base.PutMonoRow = texture_put_mono_row;
trb->Base.PutValues = texture_put_values;
trb->Base.PutMonoValues = texture_put_mono_values;