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mesa: add missing texture_put_row_rgb() function in texrender.c

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The wrap_texture() function doesn't set the renderbuffer PutRowRGB() method,
which is used to implement DrawPixels().  This fix adds an implementation
of this method.
This commit is contained in:
Robert Ellison 2009-01-26 10:22:34 -07:00 • committed by Brian Paul
parent ea8d0aa94b
commit 523febe12e
1 changed files with 54 additions and 0 deletions
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54
src/mesa/main/texrender.c
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@ -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;