+++ /dev/null
-/*
- * Mesa 3-D graphics library
- * Version: 6.5.3
- *
- * Copyright (C) 1999-2007 Brian Paul All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included
- * in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
- * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-
-
-/**
- * Renderbuffer adaptors.
- * These fuctions are used to convert rendering from core Mesa's GLchan
- * colors to 8 or 16-bit color channels in RGBA renderbuffers.
- * This means Mesa can be compiled for 16 or 32-bit color processing
- * and still render into 8 and 16-bit/channel renderbuffers.
- */
-
-
-#include "glheader.h"
-#include "mtypes.h"
-#include "colormac.h"
-#include "renderbuffer.h"
-#include "rbadaptors.h"
-
-
-static void
-Delete_wrapper(struct gl_renderbuffer *rb)
-{
- /* Decrement reference count on the buffer we're wrapping and delete
- * it if refcount hits zero.
- */
- _mesa_reference_renderbuffer(&rb->Wrapped, NULL);
-
- /* delete myself */
- _mesa_delete_renderbuffer(rb);
-}
-
-
-static GLboolean
-AllocStorage_wrapper(GLcontext *ctx, struct gl_renderbuffer *rb,
- GLenum internalFormat, GLuint width, GLuint height)
-{
- GLboolean b = rb->Wrapped->AllocStorage(ctx, rb->Wrapped, internalFormat,
- width, height);
- if (b) {
- rb->Width = width;
- rb->Height = height;
- }
- return b;
-}
-
-
-static void *
-GetPointer_wrapper(GLcontext *ctx, struct gl_renderbuffer *rb,
- GLint x, GLint y)
-{
- (void) ctx;
- (void) rb;
- (void) x;
- (void) y;
- return NULL;
-}
-
-
-static void
-GetRow_16wrap8(GLcontext *ctx, struct gl_renderbuffer *rb, GLuint count,
- GLint x, GLint y, void *values)
-{
- GLubyte values8[MAX_WIDTH * 4];
- GLushort *values16 = (GLushort *) values;
- GLuint i;
- ASSERT(rb->DataType == GL_UNSIGNED_SHORT);
- ASSERT(rb->Wrapped->DataType == GL_UNSIGNED_BYTE);
- ASSERT(count <= MAX_WIDTH);
-
- /* get 8bpp values */
- rb->Wrapped->GetRow(ctx, rb->Wrapped, count, x, y, values8);
-
- /* convert 8bpp to 16bpp */
- for (i = 0; i < 4 * count; i++) {
- values16[i] = (values8[i] << 8) | values8[i];
- }
-}
-
-
-static void
-GetValues_16wrap8(GLcontext *ctx, struct gl_renderbuffer *rb, GLuint count,
- const GLint x[], const GLint y[], void *values)
-{
- GLubyte values8[MAX_WIDTH * 4];
- GLushort *values16 = (GLushort *) values;
- GLuint i;
- ASSERT(rb->DataType == GL_UNSIGNED_SHORT);
- ASSERT(rb->Wrapped->DataType == GL_UNSIGNED_BYTE);
-
- rb->Wrapped->GetValues(ctx, rb->Wrapped, count, x, y, values8);
-
- for (i = 0; i < 4 * count; i++) {
- values16[i] = (values8[i] << 8) | values8[i];
- }
-}
-
-
-static void
-PutRow_16wrap8(GLcontext *ctx, struct gl_renderbuffer *rb, GLuint count,
- GLint x, GLint y, const void *values, const GLubyte *mask)
-{
- GLubyte values8[MAX_WIDTH * 4];
- GLushort *values16 = (GLushort *) values;
- GLuint i;
- ASSERT(rb->DataType == GL_UNSIGNED_SHORT);
- ASSERT(rb->Wrapped->DataType == GL_UNSIGNED_BYTE);
- for (i = 0; i < 4 * count; i++) {
- values8[i] = values16[i] >> 8;
- }
- rb->Wrapped->PutRow(ctx, rb->Wrapped, count, x, y, values8, mask);
-}
-
-
-static void
-PutRowRGB_16wrap8(GLcontext *ctx, struct gl_renderbuffer *rb, GLuint count,
- GLint x, GLint y, const void *values, const GLubyte *mask)
-{
- GLubyte values8[MAX_WIDTH * 3];
- GLushort *values16 = (GLushort *) values;
- GLuint i;
- ASSERT(rb->DataType == GL_UNSIGNED_SHORT);
- ASSERT(rb->Wrapped->DataType == GL_UNSIGNED_BYTE);
- for (i = 0; i < 3 * count; i++) {
- values8[i] = values16[i] >> 8;
- }
- rb->Wrapped->PutRowRGB(ctx, rb->Wrapped, count, x, y, values8, mask);
-}
-
-
-static void
-PutMonoRow_16wrap8(GLcontext *ctx, struct gl_renderbuffer *rb, GLuint count,
- GLint x, GLint y, const void *value, const GLubyte *mask)
-{
- GLubyte value8[4];
- GLushort *value16 = (GLushort *) value;
- ASSERT(rb->DataType == GL_UNSIGNED_SHORT);
- ASSERT(rb->Wrapped->DataType == GL_UNSIGNED_BYTE);
- value8[0] = value16[0] >> 8;
- value8[1] = value16[1] >> 8;
- value8[2] = value16[2] >> 8;
- value8[3] = value16[3] >> 8;
- rb->Wrapped->PutMonoRow(ctx, rb->Wrapped, count, x, y, value8, mask);
-}
-
-
-static void
-PutValues_16wrap8(GLcontext *ctx, struct gl_renderbuffer *rb, GLuint count,
- const GLint x[], const GLint y[], const void *values,
- const GLubyte *mask)
-{
- GLubyte values8[MAX_WIDTH * 4];
- GLushort *values16 = (GLushort *) values;
- GLuint i;
- ASSERT(rb->DataType == GL_UNSIGNED_SHORT);
- ASSERT(rb->Wrapped->DataType == GL_UNSIGNED_BYTE);
- for (i = 0; i < 4 * count; i++) {
- values8[i] = values16[i] >> 8;
- }
- rb->Wrapped->PutValues(ctx, rb->Wrapped, count, x, y, values8, mask);
-}
-
-
-static void
-PutMonoValues_16wrap8(GLcontext *ctx, struct gl_renderbuffer *rb,
- GLuint count, const GLint x[], const GLint y[],
- const void *value, const GLubyte *mask)
-{
- GLubyte value8[4];
- GLushort *value16 = (GLushort *) value;
- ASSERT(rb->DataType == GL_UNSIGNED_SHORT);
- ASSERT(rb->Wrapped->DataType == GL_UNSIGNED_BYTE);
- value8[0] = value16[0] >> 8;
- value8[1] = value16[1] >> 8;
- value8[2] = value16[2] >> 8;
- value8[3] = value16[3] >> 8;
- rb->Wrapped->PutMonoValues(ctx, rb->Wrapped, count, x, y, value8, mask);
-}
-
-
-/**
- * Wrap an 8-bit/channel renderbuffer with a 16-bit/channel
- * renderbuffer adaptor.
- */
-struct gl_renderbuffer *
-_mesa_new_renderbuffer_16wrap8(GLcontext *ctx, struct gl_renderbuffer *rb8)
-{
- struct gl_renderbuffer *rb16;
-
- rb16 = _mesa_new_renderbuffer(ctx, rb8->Name);
- if (rb16) {
- ASSERT(rb8->DataType == GL_UNSIGNED_BYTE);
- ASSERT(rb8->_BaseFormat == GL_RGBA);
-
- _glthread_LOCK_MUTEX(rb8->Mutex);
- rb8->RefCount++;
- _glthread_UNLOCK_MUTEX(rb8->Mutex);
-
- rb16->InternalFormat = rb8->InternalFormat;
- rb16->Format = rb8->Format; /* XXX is this right? */
- rb16->_BaseFormat = rb8->_BaseFormat;
- rb16->DataType = GL_UNSIGNED_SHORT;
- /* Note: passing through underlying bits/channel */
- rb16->Wrapped = rb8;
-
- rb16->AllocStorage = AllocStorage_wrapper;
- rb16->Delete = Delete_wrapper;
- rb16->GetPointer = GetPointer_wrapper;
- rb16->GetRow = GetRow_16wrap8;
- rb16->GetValues = GetValues_16wrap8;
- rb16->PutRow = PutRow_16wrap8;
- rb16->PutRowRGB = PutRowRGB_16wrap8;
- rb16->PutMonoRow = PutMonoRow_16wrap8;
- rb16->PutValues = PutValues_16wrap8;
- rb16->PutMonoValues = PutMonoValues_16wrap8;
- }
- return rb16;
-}
-
-
-
-
-static void
-GetRow_32wrap8(GLcontext *ctx, struct gl_renderbuffer *rb, GLuint count,
- GLint x, GLint y, void *values)
-{
- GLubyte values8[MAX_WIDTH * 4];
- GLfloat *values32 = (GLfloat *) values;
- GLuint i;
- ASSERT(rb->DataType == GL_FLOAT);
- ASSERT(rb->Wrapped->DataType == GL_UNSIGNED_BYTE);
- ASSERT(count <= MAX_WIDTH);
-
- /* get 8bpp values */
- rb->Wrapped->GetRow(ctx, rb->Wrapped, count, x, y, values8);
-
- /* convert 8bpp to 32bpp */
- for (i = 0; i < 4 * count; i++) {
- values32[i] = UBYTE_TO_FLOAT(values8[i]);
- }
-}
-
-
-static void
-GetValues_32wrap8(GLcontext *ctx, struct gl_renderbuffer *rb, GLuint count,
- const GLint x[], const GLint y[], void *values)
-{
- GLubyte values8[MAX_WIDTH * 4];
- GLfloat *values32 = (GLfloat *) values;
- GLuint i;
- ASSERT(rb->DataType == GL_FLOAT);
- ASSERT(rb->Wrapped->DataType == GL_UNSIGNED_BYTE);
-
- rb->Wrapped->GetValues(ctx, rb->Wrapped, count, x, y, values8);
-
- for (i = 0; i < 4 * count; i++) {
- values32[i] = UBYTE_TO_FLOAT(values8[i]);
- }
-}
-
-
-static void
-PutRow_32wrap8(GLcontext *ctx, struct gl_renderbuffer *rb, GLuint count,
- GLint x, GLint y, const void *values, const GLubyte *mask)
-{
- GLubyte values8[MAX_WIDTH * 4];
- GLfloat *values32 = (GLfloat *) values;
- GLuint i;
- ASSERT(rb->DataType == GL_FLOAT);
- ASSERT(rb->Wrapped->DataType == GL_UNSIGNED_BYTE);
- for (i = 0; i < 4 * count; i++) {
- UNCLAMPED_FLOAT_TO_UBYTE(values8[i], values32[i]);
- }
- rb->Wrapped->PutRow(ctx, rb->Wrapped, count, x, y, values8, mask);
-}
-
-
-static void
-PutRowRGB_32wrap8(GLcontext *ctx, struct gl_renderbuffer *rb, GLuint count,
- GLint x, GLint y, const void *values, const GLubyte *mask)
-{
- GLubyte values8[MAX_WIDTH * 3];
- GLfloat *values32 = (GLfloat *) values;
- GLuint i;
- ASSERT(rb->DataType == GL_FLOAT);
- ASSERT(rb->Wrapped->DataType == GL_UNSIGNED_BYTE);
- for (i = 0; i < 3 * count; i++) {
- UNCLAMPED_FLOAT_TO_UBYTE(values8[i], values32[i]);
- }
- rb->Wrapped->PutRowRGB(ctx, rb->Wrapped, count, x, y, values8, mask);
-}
-
-
-static void
-PutMonoRow_32wrap8(GLcontext *ctx, struct gl_renderbuffer *rb, GLuint count,
- GLint x, GLint y, const void *value, const GLubyte *mask)
-{
- GLubyte value8[4];
- GLfloat *value32 = (GLfloat *) value;
- ASSERT(rb->DataType == GL_FLOAT);
- ASSERT(rb->Wrapped->DataType == GL_UNSIGNED_BYTE);
- UNCLAMPED_FLOAT_TO_UBYTE(value8[0], value32[0]);
- UNCLAMPED_FLOAT_TO_UBYTE(value8[1], value32[1]);
- UNCLAMPED_FLOAT_TO_UBYTE(value8[2], value32[2]);
- UNCLAMPED_FLOAT_TO_UBYTE(value8[3], value32[3]);
- rb->Wrapped->PutMonoRow(ctx, rb->Wrapped, count, x, y, value8, mask);
-}
-
-
-static void
-PutValues_32wrap8(GLcontext *ctx, struct gl_renderbuffer *rb, GLuint count,
- const GLint x[], const GLint y[], const void *values,
- const GLubyte *mask)
-{
- GLubyte values8[MAX_WIDTH * 4];
- GLfloat *values32 = (GLfloat *) values;
- GLuint i;
- ASSERT(rb->DataType == GL_FLOAT);
- ASSERT(rb->Wrapped->DataType == GL_UNSIGNED_BYTE);
- for (i = 0; i < 4 * count; i++) {
- UNCLAMPED_FLOAT_TO_UBYTE(values8[i], values32[i]);
- }
- rb->Wrapped->PutValues(ctx, rb->Wrapped, count, x, y, values8, mask);
-}
-
-
-static void
-PutMonoValues_32wrap8(GLcontext *ctx, struct gl_renderbuffer *rb,
- GLuint count, const GLint x[], const GLint y[],
- const void *value, const GLubyte *mask)
-{
- GLubyte value8[4];
- GLfloat *value32 = (GLfloat *) value;
- ASSERT(rb->DataType == GL_FLOAT);
- ASSERT(rb->Wrapped->DataType == GL_UNSIGNED_BYTE);
- UNCLAMPED_FLOAT_TO_UBYTE(value8[0], value32[0]);
- UNCLAMPED_FLOAT_TO_UBYTE(value8[1], value32[1]);
- UNCLAMPED_FLOAT_TO_UBYTE(value8[2], value32[2]);
- UNCLAMPED_FLOAT_TO_UBYTE(value8[3], value32[3]);
- rb->Wrapped->PutMonoValues(ctx, rb->Wrapped, count, x, y, value8, mask);
-}
-
-
-/**
- * Wrap an 8-bit/channel renderbuffer with a 32-bit/channel
- * renderbuffer adaptor.
- */
-struct gl_renderbuffer *
-_mesa_new_renderbuffer_32wrap8(GLcontext *ctx, struct gl_renderbuffer *rb8)
-{
- struct gl_renderbuffer *rb32;
-
- rb32 = _mesa_new_renderbuffer(ctx, rb8->Name);
- if (rb32) {
- ASSERT(rb8->DataType == GL_UNSIGNED_BYTE);
- ASSERT(rb8->_BaseFormat == GL_RGBA);
-
- _glthread_LOCK_MUTEX(rb8->Mutex);
- rb8->RefCount++;
- _glthread_UNLOCK_MUTEX(rb8->Mutex);
-
- rb32->InternalFormat = rb8->InternalFormat;
- rb32->Format = rb8->Format; /* XXX is this right? */
- rb32->_BaseFormat = rb8->_BaseFormat;
- rb32->DataType = GL_FLOAT;
- /* Note: passing through underlying bits/channel */
- rb32->Wrapped = rb8;
-
- rb32->AllocStorage = AllocStorage_wrapper;
- rb32->Delete = Delete_wrapper;
- rb32->GetPointer = GetPointer_wrapper;
- rb32->GetRow = GetRow_32wrap8;
- rb32->GetValues = GetValues_32wrap8;
- rb32->PutRow = PutRow_32wrap8;
- rb32->PutRowRGB = PutRowRGB_32wrap8;
- rb32->PutMonoRow = PutMonoRow_32wrap8;
- rb32->PutValues = PutValues_32wrap8;
- rb32->PutMonoValues = PutMonoValues_32wrap8;
- }
- return rb32;
-}
-
-
-
-
-static void
-GetRow_32wrap16(GLcontext *ctx, struct gl_renderbuffer *rb, GLuint count,
- GLint x, GLint y, void *values)
-{
- GLushort values16[MAX_WIDTH * 4];
- GLfloat *values32 = (GLfloat *) values;
- GLuint i;
- ASSERT(rb->DataType == GL_FLOAT);
- ASSERT(rb->Wrapped->DataType == GL_UNSIGNED_SHORT);
- ASSERT(count <= MAX_WIDTH);
-
- /* get 16bpp values */
- rb->Wrapped->GetRow(ctx, rb->Wrapped, count, x, y, values16);
-
- /* convert 16bpp to 32bpp */
- for (i = 0; i < 4 * count; i++) {
- values32[i] = USHORT_TO_FLOAT(values16[i]);
- }
-}
-
-
-static void
-GetValues_32wrap16(GLcontext *ctx, struct gl_renderbuffer *rb, GLuint count,
- const GLint x[], const GLint y[], void *values)
-{
- GLushort values16[MAX_WIDTH * 4];
- GLfloat *values32 = (GLfloat *) values;
- GLuint i;
- ASSERT(rb->DataType == GL_FLOAT);
- ASSERT(rb->Wrapped->DataType == GL_UNSIGNED_SHORT);
-
- rb->Wrapped->GetValues(ctx, rb->Wrapped, count, x, y, values16);
-
- for (i = 0; i < 4 * count; i++) {
- values32[i] = USHORT_TO_FLOAT(values16[i]);
- }
-}
-
-
-static void
-PutRow_32wrap16(GLcontext *ctx, struct gl_renderbuffer *rb, GLuint count,
- GLint x, GLint y, const void *values, const GLubyte *mask)
-{
- GLushort values16[MAX_WIDTH * 4];
- GLfloat *values32 = (GLfloat *) values;
- GLuint i;
- ASSERT(rb->DataType == GL_FLOAT);
- ASSERT(rb->Wrapped->DataType == GL_UNSIGNED_SHORT);
- for (i = 0; i < 4 * count; i++) {
- UNCLAMPED_FLOAT_TO_USHORT(values16[i], values32[i]);
- }
- rb->Wrapped->PutRow(ctx, rb->Wrapped, count, x, y, values16, mask);
-}
-
-
-static void
-PutRowRGB_32wrap16(GLcontext *ctx, struct gl_renderbuffer *rb, GLuint count,
- GLint x, GLint y, const void *values, const GLubyte *mask)
-{
- GLushort values16[MAX_WIDTH * 3];
- GLfloat *values32 = (GLfloat *) values;
- GLuint i;
- ASSERT(rb->DataType == GL_FLOAT);
- ASSERT(rb->Wrapped->DataType == GL_UNSIGNED_SHORT);
- for (i = 0; i < 3 * count; i++) {
- UNCLAMPED_FLOAT_TO_USHORT(values16[i], values32[i]);
- }
- rb->Wrapped->PutRowRGB(ctx, rb->Wrapped, count, x, y, values16, mask);
-}
-
-
-static void
-PutMonoRow_32wrap16(GLcontext *ctx, struct gl_renderbuffer *rb, GLuint count,
- GLint x, GLint y, const void *value, const GLubyte *mask)
-{
- GLushort value16[4];
- GLfloat *value32 = (GLfloat *) value;
- ASSERT(rb->DataType == GL_FLOAT);
- ASSERT(rb->Wrapped->DataType == GL_UNSIGNED_SHORT);
- UNCLAMPED_FLOAT_TO_USHORT(value16[0], value32[0]);
- UNCLAMPED_FLOAT_TO_USHORT(value16[1], value32[1]);
- UNCLAMPED_FLOAT_TO_USHORT(value16[2], value32[2]);
- UNCLAMPED_FLOAT_TO_USHORT(value16[3], value32[3]);
- rb->Wrapped->PutMonoRow(ctx, rb->Wrapped, count, x, y, value16, mask);
-}
-
-
-static void
-PutValues_32wrap16(GLcontext *ctx, struct gl_renderbuffer *rb, GLuint count,
- const GLint x[], const GLint y[], const void *values,
- const GLubyte *mask)
-{
- GLushort values16[MAX_WIDTH * 4];
- GLfloat *values32 = (GLfloat *) values;
- GLuint i;
- ASSERT(rb->DataType == GL_FLOAT);
- ASSERT(rb->Wrapped->DataType == GL_UNSIGNED_SHORT);
- for (i = 0; i < 4 * count; i++) {
- UNCLAMPED_FLOAT_TO_USHORT(values16[i], values32[i]);
- }
- rb->Wrapped->PutValues(ctx, rb->Wrapped, count, x, y, values16, mask);
-}
-
-
-static void
-PutMonoValues_32wrap16(GLcontext *ctx, struct gl_renderbuffer *rb,
- GLuint count, const GLint x[], const GLint y[],
- const void *value, const GLubyte *mask)
-{
- GLushort value16[4];
- GLfloat *value32 = (GLfloat *) value;
- ASSERT(rb->DataType == GL_FLOAT);
- ASSERT(rb->Wrapped->DataType == GL_UNSIGNED_SHORT);
- UNCLAMPED_FLOAT_TO_USHORT(value16[0], value32[0]);
- UNCLAMPED_FLOAT_TO_USHORT(value16[1], value32[1]);
- UNCLAMPED_FLOAT_TO_USHORT(value16[2], value32[2]);
- UNCLAMPED_FLOAT_TO_USHORT(value16[3], value32[3]);
- rb->Wrapped->PutMonoValues(ctx, rb->Wrapped, count, x, y, value16, mask);
-}
-
-
-/**
- * Wrap an 16-bit/channel renderbuffer with a 32-bit/channel
- * renderbuffer adaptor.
- */
-struct gl_renderbuffer *
-_mesa_new_renderbuffer_32wrap16(GLcontext *ctx, struct gl_renderbuffer *rb16)
-{
- struct gl_renderbuffer *rb32;
-
- rb32 = _mesa_new_renderbuffer(ctx, rb16->Name);
- if (rb32) {
- ASSERT(rb16->DataType == GL_UNSIGNED_SHORT);
- ASSERT(rb16->_BaseFormat == GL_RGBA);
-
- _glthread_LOCK_MUTEX(rb16->Mutex);
- rb16->RefCount++;
- _glthread_UNLOCK_MUTEX(rb16->Mutex);
-
- rb32->InternalFormat = rb16->InternalFormat;
- rb32->Format = rb16->Format; /* XXX is this right? */
- rb32->_BaseFormat = rb16->_BaseFormat;
- rb32->DataType = GL_FLOAT;
- /* Note: passing through underlying bits/channel */
- rb32->Wrapped = rb16;
-
- rb32->AllocStorage = AllocStorage_wrapper;
- rb32->Delete = Delete_wrapper;
- rb32->GetPointer = GetPointer_wrapper;
- rb32->GetRow = GetRow_32wrap16;
- rb32->GetValues = GetValues_32wrap16;
- rb32->PutRow = PutRow_32wrap16;
- rb32->PutRowRGB = PutRowRGB_32wrap16;
- rb32->PutMonoRow = PutMonoRow_32wrap16;
- rb32->PutValues = PutValues_32wrap16;
- rb32->PutMonoValues = PutMonoValues_32wrap16;
- }
- return rb32;
-}
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