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mesa: Add a function to set up the default renderbuffer accessors.

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Reviewed-by: Brian Paul <brianp@vmware.com>
This commit is contained in:
Eric Anholt
2011-04-15 11:47:35 -07:00
parent 155200c154
commit 9f164823c7
2 changed files with 120 additions and 94 deletions
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212
src/mesa/main/renderbuffer.c
View File

@@ -923,7 +923,121 @@ put_mono_values_ushort4(struct gl_context *ctx, struct gl_renderbuffer *rb,
}
}
/**
* This is the default software fallback for gl_renderbuffer's span
* access functions.
*
* The assumptions are that rb->Data will be a pointer to (0,0), that pixels
* are packed in the type of rb->Format, and that subsequent rows appear
* rb->RowStride pixels later.
*/
void
_mesa_set_renderbuffer_accessors(struct gl_renderbuffer *rb)
{
switch (rb->Format) {
case MESA_FORMAT_RGB888:
rb->DataType = GL_UNSIGNED_BYTE;
rb->GetPointer = get_pointer_ubyte3;
rb->GetRow = get_row_ubyte3;
rb->GetValues = get_values_ubyte3;
rb->PutRow = put_row_ubyte3;
rb->PutRowRGB = put_row_rgb_ubyte3;
rb->PutMonoRow = put_mono_row_ubyte3;
rb->PutValues = put_values_ubyte3;
rb->PutMonoValues = put_mono_values_ubyte3;
break;
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;
rb->PutRowRGB = put_row_rgb_ubyte4;
rb->PutMonoRow = put_mono_row_ubyte4;
rb->PutValues = put_values_ubyte4;
rb->PutMonoValues = put_mono_values_ubyte4;
break;
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;
rb->PutRowRGB = put_row_rgb_ushort4;
rb->PutMonoRow = put_mono_row_ushort4;
rb->PutValues = put_values_ushort4;
rb->PutMonoValues = put_mono_values_ushort4;
break;
#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;
rb->PutRowRGB = NULL;
rb->PutMonoRow = put_mono_row_alpha8;
rb->PutValues = put_values_alpha8;
rb->PutMonoValues = put_mono_values_alpha8;
break;
#endif
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;
rb->PutRowRGB = NULL;
rb->PutMonoRow = put_mono_row_ubyte;
rb->PutValues = put_values_ubyte;
rb->PutMonoValues = put_mono_values_ubyte;
break;
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;
rb->PutRowRGB = NULL;
rb->PutMonoRow = put_mono_row_ushort;
rb->PutValues = put_values_ushort;
rb->PutMonoValues = put_mono_values_ushort;
break;
case MESA_FORMAT_Z32:
case MESA_FORMAT_X8_Z24:
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;
rb->PutRowRGB = NULL;
rb->PutMonoRow = put_mono_row_uint;
rb->PutValues = put_values_uint;
rb->PutMonoValues = put_mono_values_uint;
break;
case MESA_FORMAT_Z24_S8:
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;
rb->PutRowRGB = NULL;
rb->PutMonoRow = put_mono_row_uint;
rb->PutValues = put_values_uint;
rb->PutMonoValues = put_mono_values_uint;
break;
default:
break;
}
}
/**
* This is a software fallback for the gl_renderbuffer->AllocStorage
@@ -944,8 +1058,6 @@ _mesa_soft_renderbuffer_storage(struct gl_context *ctx, struct gl_renderbuffer *
GLenum internalFormat,
GLuint width, GLuint height)
{
GLuint pixelSize;
switch (internalFormat) {
case GL_RGB:
case GL_R3_G3_B2:
@@ -956,16 +1068,6 @@ _mesa_soft_renderbuffer_storage(struct gl_context *ctx, struct gl_renderbuffer *
case GL_RGB12:
case GL_RGB16:
rb->Format = MESA_FORMAT_RGB888;
rb->DataType = GL_UNSIGNED_BYTE;
rb->GetPointer = get_pointer_ubyte3;
rb->GetRow = get_row_ubyte3;
rb->GetValues = get_values_ubyte3;
rb->PutRow = put_row_ubyte3;
rb->PutRowRGB = put_row_rgb_ubyte3;
rb->PutMonoRow = put_mono_row_ubyte3;
rb->PutValues = put_values_ubyte3;
rb->PutMonoValues = put_mono_values_ubyte3;
pixelSize = 3 * sizeof(GLubyte);
break;
case GL_RGBA:
case GL_RGBA2:
@@ -977,45 +1079,15 @@ _mesa_soft_renderbuffer_storage(struct gl_context *ctx, struct gl_renderbuffer *
case GL_RGBA12:
#endif
rb->Format = 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;
rb->PutRowRGB = put_row_rgb_ubyte4;
rb->PutMonoRow = put_mono_row_ubyte4;
rb->PutValues = put_values_ubyte4;
rb->PutMonoValues = put_mono_values_ubyte4;
pixelSize = 4 * sizeof(GLubyte);
break;
case GL_RGBA16:
case GL_RGBA16_SNORM:
/* for accum buffer */
rb->Format = 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;
rb->PutRowRGB = put_row_rgb_ushort4;
rb->PutMonoRow = put_mono_row_ushort4;
rb->PutValues = put_values_ushort4;
rb->PutMonoValues = put_mono_values_ushort4;
pixelSize = 4 * sizeof(GLushort);
break;
#if 0
case GL_ALPHA8:
rb->Format = 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;
rb->PutRowRGB = NULL;
rb->PutMonoRow = put_mono_row_alpha8;
rb->PutValues = put_values_alpha8;
rb->PutMonoValues = put_mono_values_alpha8;
pixelSize = sizeof(GLubyte);
break;
#endif
case GL_STENCIL_INDEX:
@@ -1024,76 +1096,28 @@ _mesa_soft_renderbuffer_storage(struct gl_context *ctx, struct gl_renderbuffer *
case GL_STENCIL_INDEX8_EXT:
case GL_STENCIL_INDEX16_EXT:
rb->Format = 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;
rb->PutRowRGB = NULL;
rb->PutMonoRow = put_mono_row_ubyte;
rb->PutValues = put_values_ubyte;
rb->PutMonoValues = put_mono_values_ubyte;
pixelSize = sizeof(GLubyte);
break;
case GL_DEPTH_COMPONENT:
case GL_DEPTH_COMPONENT16:
rb->Format = 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;
rb->PutRowRGB = NULL;
rb->PutMonoRow = put_mono_row_ushort;
rb->PutValues = put_values_ushort;
rb->PutMonoValues = put_mono_values_ushort;
pixelSize = sizeof(GLushort);
break;
case GL_DEPTH_COMPONENT24:
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;
rb->PutRowRGB = NULL;
rb->PutMonoRow = put_mono_row_uint;
rb->PutValues = put_values_uint;
rb->PutMonoValues = put_mono_values_uint;
rb->Format = MESA_FORMAT_X8_Z24;
pixelSize = sizeof(GLuint);
break;
case GL_DEPTH_COMPONENT32:
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;
rb->PutRowRGB = NULL;
rb->PutMonoRow = put_mono_row_uint;
rb->PutValues = put_values_uint;
rb->PutMonoValues = put_mono_values_uint;
rb->Format = MESA_FORMAT_Z32;
pixelSize = sizeof(GLuint);
break;
case GL_DEPTH_STENCIL_EXT:
case GL_DEPTH24_STENCIL8_EXT:
rb->Format = MESA_FORMAT_Z24_S8;
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;
rb->PutRowRGB = NULL;
rb->PutMonoRow = put_mono_row_uint;
rb->PutValues = put_values_uint;
rb->PutMonoValues = put_mono_values_uint;
pixelSize = sizeof(GLuint);
break;
default:
/* unsupported format */
return GL_FALSE;
}
_mesa_set_renderbuffer_accessors(rb);
ASSERT(rb->DataType);
ASSERT(rb->GetPointer);
ASSERT(rb->GetRow);
@@ -1113,7 +1137,7 @@ _mesa_soft_renderbuffer_storage(struct gl_context *ctx, struct gl_renderbuffer *
if (width > 0 && height > 0) {
/* allocate new buffer storage */
rb->Data = malloc(width * height * pixelSize);
rb->Data = malloc(width * height * _mesa_get_format_bytes(rb->Format));
if (rb->Data == NULL) {
rb->Width = 0;
@@ -1121,7 +1145,7 @@ _mesa_soft_renderbuffer_storage(struct gl_context *ctx, struct gl_renderbuffer *
rb->RowStride = 0;
_mesa_error(ctx, GL_OUT_OF_MEMORY,
"software renderbuffer allocation (%d x %d x %d)",
width, height, pixelSize);
width, height, _mesa_get_format_bytes(rb->Format));
return GL_FALSE;
}
}

2
src/mesa/main/renderbuffer.h
View File

@@ -46,6 +46,8 @@ _mesa_delete_renderbuffer(struct gl_renderbuffer *rb);
extern struct gl_renderbuffer *
_mesa_new_soft_renderbuffer(struct gl_context *ctx, GLuint name);
extern void
_mesa_set_renderbuffer_accessors(struct gl_renderbuffer *rb);
extern GLboolean
_mesa_soft_renderbuffer_storage(struct gl_context *ctx, struct gl_renderbuffer *rb,