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mesa: Use _mesa_get_format_bytes to refactor out the RB get_pointer_*

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Reviewed-by: Brian Paul <brianp@vmware.com>
This commit is contained in:
Eric Anholt
2011-04-15 12:58:17 -07:00
parent 0778fdb002
commit 6ab9889a27
1 changed files with 13 additions and 68 deletions
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81
src/mesa/main/renderbuffer.c
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@@ -53,25 +53,22 @@
* Routines for get/put values in common buffer formats follow.
*/
static void *
get_pointer_generic(struct gl_context *ctx, struct gl_renderbuffer *rb,
GLint x, GLint y)
{
if (!rb->Data)
return NULL;
return (rb->Data +
(y * rb->RowStride + x) * _mesa_get_format_bytes(rb->Format));
}
/**********************************************************************
* Functions for buffers of 1 X GLubyte values.
* Typically stencil.
*/
static void *
get_pointer_ubyte(struct gl_context *ctx, struct gl_renderbuffer *rb,
GLint x, GLint y)
{
if (!rb->Data)
return NULL;
ASSERT(rb->DataType == GL_UNSIGNED_BYTE);
/* 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->RowStride + x;
}
static void
get_row_ubyte(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint count,
GLint x, GLint y, void *values)
@@ -180,18 +177,6 @@ put_mono_values_ubyte(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint
* Typically depth/Z.
*/
static void *
get_pointer_ushort(struct gl_context *ctx, struct gl_renderbuffer *rb,
GLint x, GLint y)
{
if (!rb->Data)
return NULL;
ASSERT(rb->DataType == GL_UNSIGNED_SHORT);
ASSERT(rb->Width > 0);
return (GLushort *) rb->Data + y * rb->RowStride + x;
}
static void
get_row_ushort(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint count,
GLint x, GLint y, void *values)
@@ -309,18 +294,6 @@ put_mono_values_ushort(struct gl_context *ctx, struct gl_renderbuffer *rb,
* Typically depth/Z or color index.
*/
static void *
get_pointer_uint(struct gl_context *ctx, struct gl_renderbuffer *rb,
GLint x, GLint y)
{
if (!rb->Data)
return NULL;
ASSERT(rb->DataType == GL_UNSIGNED_INT ||
rb->DataType == GL_UNSIGNED_INT_24_8_EXT);
return (GLuint *) rb->Data + y * rb->RowStride + x;
}
static void
get_row_uint(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint count,
GLint x, GLint y, void *values)
@@ -605,18 +578,6 @@ put_mono_values_ubyte3(struct gl_context *ctx, struct gl_renderbuffer *rb,
* Typically color buffers.
*/
static void *
get_pointer_ubyte4(struct gl_context *ctx, struct gl_renderbuffer *rb,
GLint x, GLint y)
{
if (!rb->Data)
return NULL;
ASSERT(rb->DataType == GL_UNSIGNED_BYTE);
ASSERT(rb->Format == MESA_FORMAT_RGBA8888);
return (GLubyte *) rb->Data + 4 * (y * rb->RowStride + x);
}
static void
get_row_ubyte4(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint count,
GLint x, GLint y, void *values)
@@ -765,17 +726,6 @@ put_mono_values_ubyte4(struct gl_context *ctx, struct gl_renderbuffer *rb,
* Typically accum buffer.
*/
static void *
get_pointer_ushort4(struct gl_context *ctx, struct gl_renderbuffer *rb,
GLint x, GLint y)
{
if (!rb->Data)
return NULL;
ASSERT(rb->DataType == GL_UNSIGNED_SHORT || rb->DataType == GL_SHORT);
return (GLushort *) rb->Data + 4 * (y * rb->RowStride + x);
}
static void
get_row_ushort4(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint count,
GLint x, GLint y, void *values)
@@ -934,6 +884,8 @@ put_mono_values_ushort4(struct gl_context *ctx, struct gl_renderbuffer *rb,
void
_mesa_set_renderbuffer_accessors(struct gl_renderbuffer *rb)
{
rb->GetPointer = get_pointer_generic;
switch (rb->Format) {
case MESA_FORMAT_RGB888:
rb->DataType = GL_UNSIGNED_BYTE;
@@ -949,7 +901,6 @@ _mesa_set_renderbuffer_accessors(struct gl_renderbuffer *rb)
case MESA_FORMAT_RGBA8888:
rb->DataType = GL_UNSIGNED_BYTE;
rb->GetPointer = get_pointer_ubyte4;
rb->GetRow = get_row_ubyte4;
rb->GetValues = get_values_ubyte4;
rb->PutRow = put_row_ubyte4;
@@ -961,7 +912,6 @@ _mesa_set_renderbuffer_accessors(struct gl_renderbuffer *rb)
case MESA_FORMAT_SIGNED_RGBA_16:
rb->DataType = GL_SHORT;
rb->GetPointer = get_pointer_ushort4;
rb->GetRow = get_row_ushort4;
rb->GetValues = get_values_ushort4;
rb->PutRow = put_row_ushort4;
@@ -974,7 +924,6 @@ _mesa_set_renderbuffer_accessors(struct gl_renderbuffer *rb)
#if 0
case MESA_FORMAT_A8:
rb->DataType = GL_UNSIGNED_BYTE;
rb->GetPointer = get_pointer_alpha8;
rb->GetRow = get_row_alpha8;
rb->GetValues = get_values_alpha8;
rb->PutRow = put_row_alpha8;
@@ -987,7 +936,6 @@ _mesa_set_renderbuffer_accessors(struct gl_renderbuffer *rb)
case MESA_FORMAT_S8:
rb->DataType = GL_UNSIGNED_BYTE;
rb->GetPointer = get_pointer_ubyte;
rb->GetRow = get_row_ubyte;
rb->GetValues = get_values_ubyte;
rb->PutRow = put_row_ubyte;
@@ -999,7 +947,6 @@ _mesa_set_renderbuffer_accessors(struct gl_renderbuffer *rb)
case MESA_FORMAT_Z16:
rb->DataType = GL_UNSIGNED_SHORT;
rb->GetPointer = get_pointer_ushort;
rb->GetRow = get_row_ushort;
rb->GetValues = get_values_ushort;
rb->PutRow = put_row_ushort;
@@ -1013,7 +960,6 @@ _mesa_set_renderbuffer_accessors(struct gl_renderbuffer *rb)
case MESA_FORMAT_X8_Z24:
case MESA_FORMAT_Z24_X8:
rb->DataType = GL_UNSIGNED_INT;
rb->GetPointer = get_pointer_uint;
rb->GetRow = get_row_uint;
rb->GetValues = get_values_uint;
rb->PutRow = put_row_uint;
@@ -1026,7 +972,6 @@ _mesa_set_renderbuffer_accessors(struct gl_renderbuffer *rb)
case MESA_FORMAT_Z24_S8:
case MESA_FORMAT_S8_Z24:
rb->DataType = GL_UNSIGNED_INT_24_8_EXT;
rb->GetPointer = get_pointer_uint;
rb->GetRow = get_row_uint;
rb->GetValues = get_values_uint;
rb->PutRow = put_row_uint;