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mesa: Add a gl_renderbuffer.RowStride field like textures have.

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This will allow some drivers to reuse the core renderbuffer.c get/put
row functions in place of using the spantmp.h macros.  Note that
unlike textures, we use a signed integer here to allow for handling
FBO orientation.

Reviewed-by: Brian Paul <brianp@vmware.com>
This commit is contained in:
Eric Anholt
2011-04-15 11:37:23 -07:00
parent 348ea34d03
commit 155200c154
3 changed files with 66 additions and 53 deletions
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115
src/mesa/main/renderbuffer.c
View File

@@ -51,8 +51,6 @@
/*
* Routines for get/put values in common buffer formats follow.
* Someday add support for arbitrary row stride to make them more
* flexible.
*/
/**********************************************************************
@@ -70,7 +68,7 @@ get_pointer_ubyte(struct gl_context *ctx, struct gl_renderbuffer *rb,
/* Can't assert rb->Format since these funcs may be used for serveral
* different formats (GL_ALPHA8, GL_STENCIL_INDEX8, etc).
*/
return (GLubyte *) rb->Data + y * rb->Width + x;
return (GLubyte *) rb->Data + y * rb->RowStride + x;
}
@@ -78,7 +76,7 @@ static void
get_row_ubyte(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint count,
GLint x, GLint y, void *values)
{
const GLubyte *src = (const GLubyte *) rb->Data + y * rb->Width + x;
const GLubyte *src = (const GLubyte *) rb->Data + y * rb->RowStride + x;
ASSERT(rb->DataType == GL_UNSIGNED_BYTE);
memcpy(values, src, count * sizeof(GLubyte));
}
@@ -92,7 +90,7 @@ get_values_ubyte(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint coun
GLuint i;
ASSERT(rb->DataType == GL_UNSIGNED_BYTE);
for (i = 0; i < count; i++) {
const GLubyte *src = (GLubyte *) rb->Data + y[i] * rb->Width + x[i];
const GLubyte *src = (GLubyte *) rb->Data + y[i] * rb->RowStride + x[i];
dst[i] = *src;
}
}
@@ -103,7 +101,7 @@ put_row_ubyte(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint count,
GLint x, GLint y, const void *values, const GLubyte *mask)
{
const GLubyte *src = (const GLubyte *) values;
GLubyte *dst = (GLubyte *) rb->Data + y * rb->Width + x;
GLubyte *dst = (GLubyte *) rb->Data + y * rb->RowStride + x;
ASSERT(rb->DataType == GL_UNSIGNED_BYTE);
if (mask) {
GLuint i;
@@ -124,7 +122,7 @@ put_mono_row_ubyte(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint co
GLint x, GLint y, const void *value, const GLubyte *mask)
{
const GLubyte val = *((const GLubyte *) value);
GLubyte *dst = (GLubyte *) rb->Data + y * rb->Width + x;
GLubyte *dst = (GLubyte *) rb->Data + y * rb->RowStride + x;
ASSERT(rb->DataType == GL_UNSIGNED_BYTE);
if (mask) {
GLuint i;
@@ -153,7 +151,7 @@ put_values_ubyte(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint coun
ASSERT(rb->DataType == GL_UNSIGNED_BYTE);
for (i = 0; i < count; i++) {
if (!mask || mask[i]) {
GLubyte *dst = (GLubyte *) rb->Data + y[i] * rb->Width + x[i];
GLubyte *dst = (GLubyte *) rb->Data + y[i] * rb->RowStride + x[i];
*dst = src[i];
}
}
@@ -170,7 +168,7 @@ put_mono_values_ubyte(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint
ASSERT(rb->DataType == GL_UNSIGNED_BYTE);
for (i = 0; i < count; i++) {
if (!mask || mask[i]) {
GLubyte *dst = (GLubyte *) rb->Data + y[i] * rb->Width + x[i];
GLubyte *dst = (GLubyte *) rb->Data + y[i] * rb->RowStride + x[i];
*dst = val;
}
}
@@ -190,7 +188,7 @@ get_pointer_ushort(struct gl_context *ctx, struct gl_renderbuffer *rb,
return NULL;
ASSERT(rb->DataType == GL_UNSIGNED_SHORT);
ASSERT(rb->Width > 0);
return (GLushort *) rb->Data + y * rb->Width + x;
return (GLushort *) rb->Data + y * rb->RowStride + x;
}
@@ -212,7 +210,7 @@ get_values_ushort(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint cou
GLuint i;
ASSERT(rb->DataType == GL_UNSIGNED_SHORT);
for (i = 0; i < count; i++) {
const GLushort *src = (GLushort *) rb->Data + y[i] * rb->Width + x[i];
const GLushort *src = (GLushort *) rb->Data + y[i] * rb->RowStride + x[i];
dst[i] = *src;
}
}
@@ -223,7 +221,7 @@ put_row_ushort(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint count,
GLint x, GLint y, const void *values, const GLubyte *mask)
{
const GLushort *src = (const GLushort *) values;
GLushort *dst = (GLushort *) rb->Data + y * rb->Width + x;
GLushort *dst = (GLushort *) rb->Data + y * rb->RowStride + x;
ASSERT(rb->DataType == GL_UNSIGNED_SHORT);
if (mask) {
GLuint i;
@@ -244,7 +242,7 @@ put_mono_row_ushort(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint c
GLint x, GLint y, const void *value, const GLubyte *mask)
{
const GLushort val = *((const GLushort *) value);
GLushort *dst = (GLushort *) rb->Data + y * rb->Width + x;
GLushort *dst = (GLushort *) rb->Data + y * rb->RowStride + x;
ASSERT(rb->DataType == GL_UNSIGNED_SHORT);
if (mask) {
GLuint i;
@@ -273,7 +271,7 @@ put_values_ushort(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint cou
ASSERT(rb->DataType == GL_UNSIGNED_SHORT);
for (i = 0; i < count; i++) {
if (!mask || mask[i]) {
GLushort *dst = (GLushort *) rb->Data + y[i] * rb->Width + x[i];
GLushort *dst = (GLushort *) rb->Data + y[i] * rb->RowStride + x[i];
*dst = src[i];
}
}
@@ -291,7 +289,7 @@ put_mono_values_ushort(struct gl_context *ctx, struct gl_renderbuffer *rb,
GLuint i;
for (i = 0; i < count; i++) {
if (mask[i]) {
GLushort *dst = (GLushort *) rb->Data + y[i] * rb->Width + x[i];
GLushort *dst = (GLushort *) rb->Data + y[i] * rb->RowStride + x[i];
*dst = val;
}
}
@@ -299,7 +297,7 @@ put_mono_values_ushort(struct gl_context *ctx, struct gl_renderbuffer *rb,
else {
GLuint i;
for (i = 0; i < count; i++) {
GLushort *dst = (GLushort *) rb->Data + y[i] * rb->Width + x[i];
GLushort *dst = (GLushort *) rb->Data + y[i] * rb->RowStride + x[i];
*dst = val;
}
}
@@ -319,7 +317,7 @@ get_pointer_uint(struct gl_context *ctx, struct gl_renderbuffer *rb,
return NULL;
ASSERT(rb->DataType == GL_UNSIGNED_INT ||
rb->DataType == GL_UNSIGNED_INT_24_8_EXT);
return (GLuint *) rb->Data + y * rb->Width + x;
return (GLuint *) rb->Data + y * rb->RowStride + x;
}
@@ -343,7 +341,7 @@ get_values_uint(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint count
ASSERT(rb->DataType == GL_UNSIGNED_INT ||
rb->DataType == GL_UNSIGNED_INT_24_8_EXT);
for (i = 0; i < count; i++) {
const GLuint *src = (GLuint *) rb->Data + y[i] * rb->Width + x[i];
const GLuint *src = (GLuint *) rb->Data + y[i] * rb->RowStride + x[i];
dst[i] = *src;
}
}
@@ -354,7 +352,7 @@ put_row_uint(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint count,
GLint x, GLint y, const void *values, const GLubyte *mask)
{
const GLuint *src = (const GLuint *) values;
GLuint *dst = (GLuint *) rb->Data + y * rb->Width + x;
GLuint *dst = (GLuint *) rb->Data + y * rb->RowStride + x;
ASSERT(rb->DataType == GL_UNSIGNED_INT ||
rb->DataType == GL_UNSIGNED_INT_24_8_EXT);
if (mask) {
@@ -376,7 +374,7 @@ put_mono_row_uint(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint cou
GLint x, GLint y, const void *value, const GLubyte *mask)
{
const GLuint val = *((const GLuint *) value);
GLuint *dst = (GLuint *) rb->Data + y * rb->Width + x;
GLuint *dst = (GLuint *) rb->Data + y * rb->RowStride + x;
ASSERT(rb->DataType == GL_UNSIGNED_INT ||
rb->DataType == GL_UNSIGNED_INT_24_8_EXT);
if (mask) {
@@ -407,7 +405,7 @@ put_values_uint(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint count
rb->DataType == GL_UNSIGNED_INT_24_8_EXT);
for (i = 0; i < count; i++) {
if (!mask || mask[i]) {
GLuint *dst = (GLuint *) rb->Data + y[i] * rb->Width + x[i];
GLuint *dst = (GLuint *) rb->Data + y[i] * rb->RowStride + x[i];
*dst = src[i];
}
}
@@ -425,7 +423,7 @@ put_mono_values_uint(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint
rb->DataType == GL_UNSIGNED_INT_24_8_EXT);
for (i = 0; i < count; i++) {
if (!mask || mask[i]) {
GLuint *dst = (GLuint *) rb->Data + y[i] * rb->Width + x[i];
GLuint *dst = (GLuint *) rb->Data + y[i] * rb->RowStride + x[i];
*dst = val;
}
}
@@ -455,7 +453,8 @@ static void
get_row_ubyte3(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint count,
GLint x, GLint y, void *values)
{
const GLubyte *src = (const GLubyte *) rb->Data + 3 * (y * rb->Width + x);
const GLubyte *src = (const GLubyte *) (rb->Data +
3 * (y * rb->RowStride + x));
GLubyte *dst = (GLubyte *) values;
GLuint i;
ASSERT(rb->Format == MESA_FORMAT_RGB888);
@@ -479,7 +478,7 @@ get_values_ubyte3(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint cou
ASSERT(rb->DataType == GL_UNSIGNED_BYTE);
for (i = 0; i < count; i++) {
const GLubyte *src
= (GLubyte *) rb->Data + 3 * (y[i] * rb->Width + x[i]);
= (GLubyte *) rb->Data + 3 * (y[i] * rb->RowStride + x[i]);
dst[i * 4 + 0] = src[0];
dst[i * 4 + 1] = src[1];
dst[i * 4 + 2] = src[2];
@@ -494,7 +493,7 @@ put_row_ubyte3(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint count,
{
/* note: incoming values are RGB+A! */
const GLubyte *src = (const GLubyte *) values;
GLubyte *dst = (GLubyte *) rb->Data + 3 * (y * rb->Width + x);
GLubyte *dst = (GLubyte *) rb->Data + 3 * (y * rb->RowStride + x);
GLuint i;
ASSERT(rb->Format == MESA_FORMAT_RGB888);
ASSERT(rb->DataType == GL_UNSIGNED_BYTE);
@@ -514,7 +513,7 @@ put_row_rgb_ubyte3(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint co
{
/* note: incoming values are RGB+A! */
const GLubyte *src = (const GLubyte *) values;
GLubyte *dst = (GLubyte *) rb->Data + 3 * (y * rb->Width + x);
GLubyte *dst = (GLubyte *) rb->Data + 3 * (y * rb->RowStride + x);
GLuint i;
ASSERT(rb->Format == MESA_FORMAT_RGB888);
ASSERT(rb->DataType == GL_UNSIGNED_BYTE);
@@ -536,7 +535,7 @@ put_mono_row_ubyte3(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint c
const GLubyte val0 = ((const GLubyte *) value)[0];
const GLubyte val1 = ((const GLubyte *) value)[1];
const GLubyte val2 = ((const GLubyte *) value)[2];
GLubyte *dst = (GLubyte *) rb->Data + 3 * (y * rb->Width + x);
GLubyte *dst = (GLubyte *) rb->Data + 3 * (y * rb->RowStride + x);
ASSERT(rb->Format == MESA_FORMAT_RGB888);
ASSERT(rb->DataType == GL_UNSIGNED_BYTE);
if (!mask && val0 == val1 && val1 == val2) {
@@ -568,7 +567,7 @@ put_values_ubyte3(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint cou
ASSERT(rb->DataType == GL_UNSIGNED_BYTE);
for (i = 0; i < count; i++) {
if (!mask || mask[i]) {
GLubyte *dst = (GLubyte *) rb->Data + 3 * (y[i] * rb->Width + x[i]);
GLubyte *dst = (GLubyte *) rb->Data + 3 * (y[i] * rb->RowStride + x[i]);
dst[0] = src[i * 4 + 0];
dst[1] = src[i * 4 + 1];
dst[2] = src[i * 4 + 2];
@@ -591,7 +590,8 @@ put_mono_values_ubyte3(struct gl_context *ctx, struct gl_renderbuffer *rb,
ASSERT(rb->DataType == GL_UNSIGNED_BYTE);
for (i = 0; i < count; i++) {
if (!mask || mask[i]) {
GLubyte *dst = (GLubyte *) rb->Data + 3 * (y[i] * rb->Width + x[i]);
GLubyte *dst = (GLubyte *) (rb->Data +
3 * (y[i] * rb->RowStride + x[i]));
dst[0] = val0;
dst[1] = val1;
dst[2] = val2;
@@ -613,7 +613,7 @@ get_pointer_ubyte4(struct gl_context *ctx, struct gl_renderbuffer *rb,
return NULL;
ASSERT(rb->DataType == GL_UNSIGNED_BYTE);
ASSERT(rb->Format == MESA_FORMAT_RGBA8888);
return (GLubyte *) rb->Data + 4 * (y * rb->Width + x);
return (GLubyte *) rb->Data + 4 * (y * rb->RowStride + x);
}
@@ -621,7 +621,8 @@ static void
get_row_ubyte4(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint count,
GLint x, GLint y, void *values)
{
const GLubyte *src = (const GLubyte *) rb->Data + 4 * (y * rb->Width + x);
const GLubyte *src = (const GLubyte *) (rb->Data +
4 * (y * rb->RowStride + x));
ASSERT(rb->DataType == GL_UNSIGNED_BYTE);
ASSERT(rb->Format == MESA_FORMAT_RGBA8888);
memcpy(values, src, 4 * count * sizeof(GLubyte));
@@ -638,7 +639,7 @@ get_values_ubyte4(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint cou
ASSERT(rb->DataType == GL_UNSIGNED_BYTE);
ASSERT(rb->Format == MESA_FORMAT_RGBA8888);
for (i = 0; i < count; i++) {
const GLuint *src = (GLuint *) rb->Data + (y[i] * rb->Width + x[i]);
const GLuint *src = (GLuint *) rb->Data + (y[i] * rb->RowStride + x[i]);
dst[i] = *src;
}
}
@@ -650,7 +651,7 @@ put_row_ubyte4(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint count,
{
/* treat 4*GLubyte as 1*GLuint */
const GLuint *src = (const GLuint *) values;
GLuint *dst = (GLuint *) rb->Data + (y * rb->Width + x);
GLuint *dst = (GLuint *) rb->Data + (y * rb->RowStride + x);
ASSERT(rb->DataType == GL_UNSIGNED_BYTE);
ASSERT(rb->Format == MESA_FORMAT_RGBA8888);
if (mask) {
@@ -673,7 +674,7 @@ put_row_rgb_ubyte4(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint co
{
/* Store RGB values in RGBA buffer */
const GLubyte *src = (const GLubyte *) values;
GLubyte *dst = (GLubyte *) rb->Data + 4 * (y * rb->Width + x);
GLubyte *dst = (GLubyte *) rb->Data + 4 * (y * rb->RowStride + x);
GLuint i;
ASSERT(rb->DataType == GL_UNSIGNED_BYTE);
ASSERT(rb->Format == MESA_FORMAT_RGBA8888);
@@ -694,7 +695,7 @@ put_mono_row_ubyte4(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint c
{
/* treat 4*GLubyte as 1*GLuint */
const GLuint val = *((const GLuint *) value);
GLuint *dst = (GLuint *) rb->Data + (y * rb->Width + x);
GLuint *dst = (GLuint *) rb->Data + (y * rb->RowStride + x);
ASSERT(rb->DataType == GL_UNSIGNED_BYTE);
ASSERT(rb->Format == MESA_FORMAT_RGBA8888);
if (!mask && val == 0) {
@@ -733,7 +734,7 @@ put_values_ubyte4(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint cou
ASSERT(rb->Format == MESA_FORMAT_RGBA8888);
for (i = 0; i < count; i++) {
if (!mask || mask[i]) {
GLuint *dst = (GLuint *) rb->Data + (y[i] * rb->Width + x[i]);
GLuint *dst = (GLuint *) rb->Data + (y[i] * rb->RowStride + x[i]);
*dst = src[i];
}
}
@@ -752,7 +753,7 @@ put_mono_values_ubyte4(struct gl_context *ctx, struct gl_renderbuffer *rb,
ASSERT(rb->Format == MESA_FORMAT_RGBA8888);
for (i = 0; i < count; i++) {
if (!mask || mask[i]) {
GLuint *dst = (GLuint *) rb->Data + (y[i] * rb->Width + x[i]);
GLuint *dst = (GLuint *) rb->Data + (y[i] * rb->RowStride + x[i]);
*dst = val;
}
}
@@ -771,7 +772,7 @@ get_pointer_ushort4(struct gl_context *ctx, struct gl_renderbuffer *rb,
if (!rb->Data)
return NULL;
ASSERT(rb->DataType == GL_UNSIGNED_SHORT || rb->DataType == GL_SHORT);
return (GLushort *) rb->Data + 4 * (y * rb->Width + x);
return (GLushort *) rb->Data + 4 * (y * rb->RowStride + x);
}
@@ -779,7 +780,8 @@ static void
get_row_ushort4(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint count,
GLint x, GLint y, void *values)
{
const GLshort *src = (const GLshort *) rb->Data + 4 * (y * rb->Width + x);
const GLshort *src = (const GLshort *) (rb->Data +
4 * (y * rb->RowStride + x));
ASSERT(rb->DataType == GL_UNSIGNED_SHORT || rb->DataType == GL_SHORT);
memcpy(values, src, 4 * count * sizeof(GLshort));
}
@@ -794,7 +796,7 @@ get_values_ushort4(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint co
ASSERT(rb->DataType == GL_UNSIGNED_SHORT || rb->DataType == GL_SHORT);
for (i = 0; i < count; i++) {
const GLushort *src
= (GLushort *) rb->Data + 4 * (y[i] * rb->Width + x[i]);
= (GLushort *) rb->Data + 4 * (y[i] * rb->RowStride + x[i]);
dst[i] = *src;
}
}
@@ -805,7 +807,7 @@ put_row_ushort4(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint count
GLint x, GLint y, const void *values, const GLubyte *mask)
{
const GLushort *src = (const GLushort *) values;
GLushort *dst = (GLushort *) rb->Data + 4 * (y * rb->Width + x);
GLushort *dst = (GLushort *) rb->Data + 4 * (y * rb->RowStride + x);
ASSERT(rb->DataType == GL_UNSIGNED_SHORT || rb->DataType == GL_SHORT);
if (mask) {
GLuint i;
@@ -830,7 +832,7 @@ put_row_rgb_ushort4(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint c
{
/* Put RGB values in RGBA buffer */
const GLushort *src = (const GLushort *) values;
GLushort *dst = (GLushort *) rb->Data + 4 * (y * rb->Width + x);
GLushort *dst = (GLushort *) rb->Data + 4 * (y * rb->RowStride + x);
ASSERT(rb->DataType == GL_UNSIGNED_SHORT || rb->DataType == GL_SHORT);
if (mask) {
GLuint i;
@@ -857,7 +859,7 @@ put_mono_row_ushort4(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint
const GLushort val1 = ((const GLushort *) value)[1];
const GLushort val2 = ((const GLushort *) value)[2];
const GLushort val3 = ((const GLushort *) value)[3];
GLushort *dst = (GLushort *) rb->Data + 4 * (y * rb->Width + x);
GLushort *dst = (GLushort *) rb->Data + 4 * (y * rb->RowStride + x);
ASSERT(rb->DataType == GL_UNSIGNED_SHORT || rb->DataType == GL_SHORT);
if (!mask && val0 == 0 && val1 == 0 && val2 == 0 && val3 == 0) {
/* common case for clearing accum buffer */
@@ -887,7 +889,8 @@ put_values_ushort4(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint co
ASSERT(rb->DataType == GL_UNSIGNED_SHORT || rb->DataType == GL_SHORT);
for (i = 0; i < count; i++) {
if (!mask || mask[i]) {
GLushort *dst = (GLushort *) rb->Data + 4 * (y[i] * rb->Width + x[i]);
GLushort *dst = (GLushort *) (rb->Data + 4 *
(y[i] * rb->RowStride + x[i]));
dst[0] = src[i * 4 + 0];
dst[1] = src[i * 4 + 1];
dst[2] = src[i * 4 + 2];
@@ -910,7 +913,8 @@ put_mono_values_ushort4(struct gl_context *ctx, struct gl_renderbuffer *rb,
ASSERT(rb->DataType == GL_UNSIGNED_SHORT || rb->DataType == GL_SHORT);
for (i = 0; i < count; i++) {
if (!mask || mask[i]) {
GLushort *dst = (GLushort *) rb->Data + 4 * (y[i] * rb->Width + x[i]);
GLushort *dst = (GLushort *) (rb->Data +
4 * (y[i] * rb->RowStride + x[i]));
dst[0] = val0;
dst[1] = val1;
dst[2] = val2;
@@ -1105,6 +1109,8 @@ _mesa_soft_renderbuffer_storage(struct gl_context *ctx, struct gl_renderbuffer *
rb->Data = NULL;
}
rb->RowStride = width;
if (width > 0 && height > 0) {
/* allocate new buffer storage */
rb->Data = malloc(width * height * pixelSize);
@@ -1112,6 +1118,7 @@ _mesa_soft_renderbuffer_storage(struct gl_context *ctx, struct gl_renderbuffer *
if (rb->Data == NULL) {
rb->Width = 0;
rb->Height = 0;
rb->RowStride = 0;
_mesa_error(ctx, GL_OUT_OF_MEMORY,
"software renderbuffer allocation (%d x %d x %d)",
width, height, pixelSize);
@@ -1185,6 +1192,7 @@ alloc_storage_alpha8(struct gl_context *ctx, struct gl_renderbuffer *arb,
arb->Width = width;
arb->Height = height;
arb->RowStride = width;
return GL_TRUE;
}
@@ -1220,7 +1228,7 @@ get_row_alpha8(struct gl_context *ctx, struct gl_renderbuffer *arb, GLuint count
GLint x, GLint y, void *values)
{
/* NOTE: 'values' is RGBA format! */
const GLubyte *src = (const GLubyte *) arb->Data + y * arb->Width + x;
const GLubyte *src = (const GLubyte *) arb->Data + y * arb->RowStride + x;
GLubyte *dst = (GLubyte *) values;
GLuint i;
ASSERT(arb != arb->Wrapped);
@@ -1246,7 +1254,7 @@ get_values_alpha8(struct gl_context *ctx, struct gl_renderbuffer *arb, GLuint co
arb->Wrapped->GetValues(ctx, arb->Wrapped, count, x, y, values);
/* second, fill in alpha values from this buffer! */
for (i = 0; i < count; i++) {
const GLubyte *src = (GLubyte *) arb->Data + y[i] * arb->Width + x[i];
const GLubyte *src = (GLubyte *) arb->Data + y[i] * arb->RowStride + x[i];
dst[i * 4 + 3] = *src;
}
}
@@ -1257,7 +1265,7 @@ put_row_alpha8(struct gl_context *ctx, struct gl_renderbuffer *arb, GLuint count
GLint x, GLint y, const void *values, const GLubyte *mask)
{
const GLubyte *src = (const GLubyte *) values;
GLubyte *dst = (GLubyte *) arb->Data + y * arb->Width + x;
GLubyte *dst = (GLubyte *) arb->Data + y * arb->RowStride + x;
GLuint i;
ASSERT(arb != arb->Wrapped);
ASSERT(arb->DataType == GL_UNSIGNED_BYTE);
@@ -1277,7 +1285,7 @@ put_row_rgb_alpha8(struct gl_context *ctx, struct gl_renderbuffer *arb, GLuint c
GLint x, GLint y, const void *values, const GLubyte *mask)
{
const GLubyte *src = (const GLubyte *) values;
GLubyte *dst = (GLubyte *) arb->Data + y * arb->Width + x;
GLubyte *dst = (GLubyte *) arb->Data + y * arb->RowStride + x;
GLuint i;
ASSERT(arb != arb->Wrapped);
ASSERT(arb->DataType == GL_UNSIGNED_BYTE);
@@ -1297,7 +1305,7 @@ put_mono_row_alpha8(struct gl_context *ctx, struct gl_renderbuffer *arb, GLuint
GLint x, GLint y, const void *value, const GLubyte *mask)
{
const GLubyte val = ((const GLubyte *) value)[3];
GLubyte *dst = (GLubyte *) arb->Data + y * arb->Width + x;
GLubyte *dst = (GLubyte *) arb->Data + y * arb->RowStride + x;
ASSERT(arb != arb->Wrapped);
ASSERT(arb->DataType == GL_UNSIGNED_BYTE);
/* first, pass the call to the wrapped RGB buffer */
@@ -1331,7 +1339,7 @@ put_values_alpha8(struct gl_context *ctx, struct gl_renderbuffer *arb, GLuint co
/* second, store alpha in our buffer */
for (i = 0; i < count; i++) {
if (!mask || mask[i]) {
GLubyte *dst = (GLubyte *) arb->Data + y[i] * arb->Width + x[i];
GLubyte *dst = (GLubyte *) arb->Data + y[i] * arb->RowStride + x[i];
*dst = src[i * 4 + 3];
}
}
@@ -1352,7 +1360,7 @@ put_mono_values_alpha8(struct gl_context *ctx, struct gl_renderbuffer *arb,
/* second, store alpha in our buffer */
for (i = 0; i < count; i++) {
if (!mask || mask[i]) {
GLubyte *dst = (GLubyte *) arb->Data + y[i] * arb->Width + x[i];
GLubyte *dst = (GLubyte *) arb->Data + y[i] * arb->RowStride + x[i];
*dst = val;
}
}
@@ -1366,8 +1374,9 @@ copy_buffer_alpha8(struct gl_renderbuffer* dst, struct gl_renderbuffer* src)
ASSERT(src->Format == MESA_FORMAT_A8);
ASSERT(dst->Width == src->Width);
ASSERT(dst->Height == src->Height);
ASSERT(dst->RowStride == src->RowStride);
memcpy(dst->Data, src->Data, dst->Width * dst->Height * sizeof(GLubyte));
memcpy(dst->Data, src->Data, dst->RowStride * dst->Height * sizeof(GLubyte));
}