/*
* Mesa 3-D graphics library
* Version: 6.1
*
* Copyright (C) 1999-2004 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.
*/
/*
* OpenGL (Mesa) interface for fbdev.
* For info about fbdev:
* http://www.tldp.org/HOWTO/Framebuffer-HOWTO.html
*
* known VGA modes
* Colours 640x400 640x480 800x600 1024x768 1152x864 1280x1024 1600x1200
* --------+--------------------------------------------------------------
* 4 bits | ? ? 0x302 ? ? ? ?
* 8 bits | 0x300 0x301 0x303 0x305 0x161 0x307 0x31C
* 15 bits | ? 0x310 0x313 0x316 0x162 0x319 0x31D
* 16 bits | ? 0x311 0x314 0x317 0x163 0x31A 0x31E
* 24 bits | ? 0x312 0x315 0x318 ? 0x31B 0x31F
* 32 bits | ? ? ? ? 0x164 ?
*/
#ifdef USE_GLFBDEV_DRIVER
#include "glheader.h"
#include <linux/fb.h>
#include "GL/glfbdev.h"
#include "context.h"
#include "extensions.h"
#include "imports.h"
#include "texformat.h"
#include "teximage.h"
#include "texstore.h"
#include "array_cache/acache.h"
#include "swrast/swrast.h"
#include "swrast_setup/swrast_setup.h"
#include "tnl/tnl.h"
#include "tnl/t_context.h"
#include "tnl/t_pipeline.h"
#include "drivers/common/driverfuncs.h"
#define PF_B8G8R8 1
#define PF_B8G8R8A8 2
#define PF_B5G6R5 3
#define PF_B5G5R5 4
#define PF_CI8 5
/*
* Derived from Mesa's GLvisual class.
*/
struct GLFBDevVisualRec {
GLvisual glvisual; /* base class */
struct fb_fix_screeninfo fix;
struct fb_var_screeninfo var;
int pixelFormat;
};
/*
* Derived from Mesa's GLframebuffer class.
*/
struct GLFBDevBufferRec {
GLframebuffer glframebuffer; /* base class */
GLFBDevVisualPtr visual;
struct fb_fix_screeninfo fix;
struct fb_var_screeninfo var;
void *frontStart;
void *backStart;
size_t size;
GLuint bytesPerPixel;
GLuint rowStride; /* in bytes */
GLubyte *frontBottom; /* pointer to last row */
GLubyte *backBottom; /* pointer to last row */
GLubyte *curBottom; /* = frontBottom or backBottom */
GLboolean mallocBackBuffer;
};
/*
* Derived from Mesa's GLcontext class.
*/
struct GLFBDevContextRec {
GLcontext glcontext; /* base class */
GLFBDevVisualPtr visual;
GLFBDevBufferPtr drawBuffer;
GLFBDevBufferPtr readBuffer;
GLFBDevBufferPtr curBuffer;
};
#define GLFBDEV_CONTEXT(CTX) ((GLFBDevContextPtr) (CTX))
#define GLFBDEV_BUFFER(BUF) ((GLFBDevBufferPtr) (BUF))
/**********************************************************************/
/* Internal device driver functions */
/**********************************************************************/
static const GLubyte *
get_string(GLcontext *ctx, GLenum pname)
{
(void) ctx;
switch (pname) {
case GL_RENDERER:
return (const GLubyte *) "Mesa glfbdev";
default:
return NULL;
}
}
static void
update_state( GLcontext *ctx, GLuint new_state )
{
/* not much to do here - pass it on */
_swrast_InvalidateState( ctx, new_state );
_swsetup_InvalidateState( ctx, new_state );
_ac_InvalidateState( ctx, new_state );
_tnl_InvalidateState( ctx, new_state );
}
static void
get_buffer_size( GLframebuffer *buffer, GLuint *width, GLuint *height )
{
const GLFBDevBufferPtr fbdevbuffer = (GLFBDevBufferPtr) buffer;
*width = fbdevbuffer->var.xres_virtual;
*height = fbdevbuffer->var.yres_virtual;
}
/* specifies the buffer for swrast span rendering/reading */
static void
set_buffer( GLcontext *ctx, GLframebuffer *buffer, GLuint bufferBit )
{
GLFBDevContextPtr fbdevctx = GLFBDEV_CONTEXT(ctx);
GLFBDevBufferPtr fbdevbuf = GLFBDEV_BUFFER(buffer);
fbdevctx->curBuffer = fbdevbuf;
switch (bufferBit) {
case FRONT_LEFT_BIT:
fbdevbuf->curBottom = fbdevbuf->frontBottom;
break;
case BACK_LEFT_BIT:
fbdevbuf->curBottom = fbdevbuf->backBottom;
break;
default:
_mesa_problem(ctx, "bad bufferBit in set_buffer()");
}
}
/*
* Generate code for span functions.
*/
/* 24-bit BGR */
#define NAME(PREFIX) PREFIX##_B8G8R8
#define SPAN_VARS \
const GLFBDevContextPtr fbdevctx = GLFBDEV_CONTEXT(ctx); \
const GLFBDevBufferPtr fbdevbuf = fbdevctx->curBuffer;
#define INIT_PIXEL_PTR(P, X, Y) \
GLubyte *P = fbdevbuf->curBottom - (Y) * fbdevbuf->rowStride + (X) * 3
#define INC_PIXEL_PTR(P) P += 3
#define STORE_RGB_PIXEL(P, X, Y, R, G, B) \
P[0] = B; P[1] = G; P[2] = R
#define STORE_RGBA_PIXEL(P, X, Y, R, G, B, A) \
P[0] = B; P[1] = G; P[2] = R
#define FETCH_RGBA_PIXEL(R, G, B, A, P) \
R = P[2]; G = P[1]; B = P[0]; A = CHAN_MAX
#include "swrast/s_spantemp.h"
/* 32-bit BGRA */
#define NAME(PREFIX) PREFIX##_B8G8R8A8
#define SPAN_VARS \
const GLFBDevContextPtr fbdevctx = GLFBDEV_CONTEXT(ctx); \
const GLFBDevBufferPtr fbdevbuf = fbdevctx->curBuffer;
#define INIT_PIXEL_PTR(P, X, Y) \
GLubyte *P = fbdevbuf->curBottom - (Y) * fbdevbuf->rowStride + (X) * 4
#define INC_PIXEL_PTR(P) P += 4
#define STORE_RGB_PIXEL(P, X, Y, R, G, B) \
P[0] = B; P[1] = G; P[2] = R; P[3] = 255
#define STORE_RGBA_PIXEL(P, X, Y, R, G, B, A) \
P[0] = B; P[1] = G; P[2] = R; P[3] = A
#define FETCH_RGBA_PIXEL(R, G, B, A, P) \
R = P[2]; G = P[1]; B = P[0]; A = P[3]
#include "swrast/s_spantemp.h"
/* 16-bit BGR (XXX implement dithering someday) */
#define NAME(PREFIX) PREFIX##_B5G6R5
#define SPAN_VARS \
const GLFBDevContextPtr fbdevctx = GLFBDEV_CONTEXT(ctx); \
const GLFBDevBufferPtr fbdevbuf = fbdevctx->curBuffer;
#define INIT_PIXEL_PTR(P, X, Y) \
GLushort *P = (GLushort *) (fbdevbuf->curBottom - (Y) * fbdevbuf->rowStride + (X) * 2)
#define INC_PIXEL_PTR(P) P += 1
#define STORE_RGB_PIXEL(P, X, Y, R, G, B) \
*P = ( (((R) & 0xf8) << 8) | (((G) & 0xfc) << 3) | ((B) >> 3) )
#define STORE_RGBA_PIXEL(P, X, Y, R, G, B, A) \
*P = ( (((R) & 0xf8) << 8) | (((G) & 0xfc) << 3) | ((B) >> 3) )
#define FETCH_RGBA_PIXEL(R, G, B, A, P) \
R = ( (((*P) >> 8) & 0xf8) | (((*P) >> 11) & 0x7) ); \
G = ( (((*P) >> 3) & 0xfc) | (((*P) >> 5) & 0x3) ); \
B = ( (((*P) << 3) & 0xf8) | (((*P) ) & 0x7) ); \
A = CHAN_MAX
#include "swrast/s_spantemp.h"
/* 15-bit BGR (XXX implement dithering someday) */
#define NAME(PREFIX) PREFIX##_B5G5R5
#define SPAN_VARS \
const GLFBDevContextPtr fbdevctx = GLFBDEV_CONTEXT(ctx); \
const GLFBDevBufferPtr fbdevbuf = fbdevctx->curBuffer;
#define INIT_PIXEL_PTR(P, X, Y) \
GLushort *P = (GLushort *) (fbdevbuf->curBottom - (Y) * fbdevbuf->rowStride + (X) * 2)
#define INC_PIXEL_PTR(P) P += 1
#define STORE_RGB_PIXEL(P, X, Y, R, G, B) \
*P = ( (((R) & 0xf8) << 7) | (((G) & 0xf8) << 2) | ((B) >> 3) )
#define STORE_RGBA_PIXEL(P, X, Y, R, G, B, A) \
*P = ( (((R) & 0xf8) << 7) | (((G) & 0xf8) << 2) | ((B) >> 3) )
#define FETCH_RGBA_PIXEL(R, G, B, A, P) \
R = ( (((*P) >> 7) & 0xf8) | (((*P) >> 10) & 0x7) ); \
G = ( (((*P) >> 2) & 0xf8) | (((*P) >> 5) & 0x7) ); \
B = ( (((*P) << 3) & 0xf8) | (((*P) ) & 0x7) ); \
A = CHAN_MAX
#include "swrast/s_spantemp.h"
/* 8-bit color index */
#define NAME(PREFIX) PREFIX##_CI8
#define SPAN_VARS \
const GLFBDevContextPtr fbdevctx = GLFBDEV_CONTEXT(ctx); \
const GLFBDevBufferPtr fbdevbuf = fbdevctx->curBuffer;
#define INIT_PIXEL_PTR(P, X, Y) \
GLubyte *P = fbdevbuf->curBottom - (Y) * fbdevbuf->rowStride + (X)
#define INC_PIXEL_PTR(P) P += 1
#define STORE_CI_PIXEL(P, CI) \
P[0] = CI
#define FETCH_CI_PIXEL(CI, P) \
CI = P[0]
#include "swrast/s_spantemp.h"
/**********************************************************************/
/* Public API functions */
/**********************************************************************/
const char *
glFBDevGetString( int str )
{
switch (str) {
case GLFBDEV_VENDOR:
return "Mesa Project";
case GLFBDEV_VERSION:
return "1.0.0";
default:
return NULL;
}
}
const void *
glFBDevGetProcAddress( const char *procName )
{
struct name_address {
const char *name;
const void *func;
};
static const struct name_address functions[] = {
{ "glFBDevGetString", (void *) glFBDevGetString },
{ "glFBDevGetProcAddress", (void *) glFBDevGetProcAddress },
{ "glFBDevCreateVisual", (void *) glFBDevCreateVisual },
{ "glFBDevDestroyVisual", (void *) glFBDevDestroyVisual },
{ "glFBDevGetVisualAttrib", (void *) glFBDevGetVisualAttrib },
{ "glFBDevCreateBuffer", (void *) glFBDevCreateBuffer },
{ "glFBDevDestroyBuffer", (void *) glFBDevDestroyBuffer },
{ "glFBDevGetBufferAttrib", (void *) glFBDevGetBufferAttrib },
{ "glFBDevGetCurrentDrawBuffer", (void *) glFBDevGetCurrentDrawBuffer },
{ "glFBDevGetCurrentReadBuffer", (void *) glFBDevGetCurrentReadBuffer },
{ "glFBDevSwapBuffers", (void *) glFBDevSwapBuffers },
{ "glFBDevCreateContext", (void *) glFBDevCreateContext },
{ "glFBDevDestroyContext", (void *) glFBDevDestroyContext },
{ "glFBDevGetContextAttrib", (void *) glFBDevGetContextAttrib },
{ "glFBDevGetCurrentContext", (void *) glFBDevGetCurrentContext },
{ "glFBDevMakeCurrent", (void *) glFBDevMakeCurrent },
{ NULL, NULL }
};
const struct name_address *entry;
for (entry = functions; entry->name; entry++) {
if (_mesa_strcmp(entry->name, procName) == 0) {
return entry->func;
}
}
return _glapi_get_proc_address(procName);
}
GLFBDevVisualPtr
glFBDevCreateVisual( const struct fb_fix_screeninfo *fixInfo,
const struct fb_var_screeninfo *varInfo,
const int *attribs )
{
GLFBDevVisualPtr vis;
const int *attrib;
GLboolean rgbFlag = GL_TRUE, dbFlag = GL_FALSE, stereoFlag = GL_FALSE;
GLint redBits = 0, greenBits = 0, blueBits = 0, alphaBits = 0;
GLint indexBits = 0, depthBits = 0, stencilBits = 0;
GLint accumRedBits = 0, accumGreenBits = 0;
GLint accumBlueBits = 0, accumAlphaBits = 0;
GLint numSamples = 0;
ASSERT(fixInfo);
ASSERT(varInfo);
vis = CALLOC_STRUCT(GLFBDevVisualRec);
if (!vis)
return NULL;
vis->fix = *fixInfo; /* struct assignment */
vis->var = *varInfo; /* struct assignment */
for (attrib = attribs; attrib && *attrib != GLFBDEV_NONE; attrib++) {
switch (*attrib) {
case GLFBDEV_DOUBLE_BUFFER:
dbFlag = GL_TRUE;
break;
case GLFBDEV_COLOR_INDEX:
rgbFlag = GL_FALSE;
break;
case GLFBDEV_DEPTH_SIZE:
depthBits = attrib[1];
attrib++;
break;
case GLFBDEV_STENCIL_SIZE:
stencilBits = attrib[1];
attrib++;
break;
case GLFBDEV_ACCUM_SIZE:
accumRedBits = accumGreenBits = accumBlueBits = accumAlphaBits
= attrib[1];
attrib++;
break;
case GLFBDEV_LEVEL:
/* ignored for now */
break;
default:
/* unexpected token */
_mesa_free(vis);
return NULL;
}
}
if (rgbFlag) {
redBits = varInfo->red.length;
greenBits = varInfo->green.length;
blueBits = varInfo->blue.length;
alphaBits = varInfo->transp.length;
if ((fixInfo->visual == FB_VISUAL_TRUECOLOR ||
fixInfo->visual == FB_VISUAL_DIRECTCOLOR)
&& varInfo->bits_per_pixel == 24
&& varInfo->red.offset == 16
&& varInfo->green.offset == 8
&& varInfo->blue.offset == 0) {
vis->pixelFormat = PF_B8G8R8;
}
else if ((fixInfo->visual == FB_VISUAL_TRUECOLOR ||
fixInfo->visual == FB_VISUAL_DIRECTCOLOR)
&& varInfo->bits_per_pixel == 32
&& varInfo->red.offset == 16
&& varInfo->green.offset == 8
&& varInfo->blue.offset == 0
&& varInfo->transp.offset == 24) {
vis->pixelFormat = PF_B8G8R8A8;
}
else if ((fixInfo->visual == FB_VISUAL_TRUECOLOR ||
fixInfo->visual == FB_VISUAL_DIRECTCOLOR)
&& varInfo->bits_per_pixel == 16
&& varInfo->red.offset == 11
&& varInfo->green.offset == 5
&& varInfo->blue.offset == 0) {
vis->pixelFormat = PF_B5G6R5;
}
else if ((fixInfo->visual == FB_VISUAL_TRUECOLOR ||
fixInfo->visual == FB_VISUAL_DIRECTCOLOR)
&& varInfo->bits_per_pixel == 16
&& varInfo->red.offset == 10
&& varInfo->green.offset == 5
&& varInfo->blue.offset == 0) {
vis->pixelFormat = PF_B5G5R5;
}
else {
_mesa_problem(NULL, "Unsupported fbdev RGB visual/bitdepth!\n");
/*
printf("fixInfo->visual = 0x%x\n", fixInfo->visual);
printf("varInfo->bits_per_pixel = %d\n", varInfo->bits_per_pixel);
printf("varInfo->red.offset = %d\n", varInfo->red.offset);
printf("varInfo->green.offset = %d\n", varInfo->green.offset);
printf("varInfo->blue.offset = %d\n", varInfo->blue.offset);
*/
_mesa_free(vis);
return NULL;
}
}
else {
indexBits = varInfo->bits_per_pixel;
if ((fixInfo->visual == FB_VISUAL_PSEUDOCOLOR ||
fixInfo->visual == FB_VISUAL_STATIC_PSEUDOCOLOR)
&& varInfo->bits_per_pixel == 8) {
vis->pixelFormat = PF_CI8;
}
else {
_mesa_problem(NULL, "Unsupported fbdev CI visual/bitdepth!\n");
_mesa_free(vis);
return NULL;
}
}
if (!_mesa_initialize_visual(&vis->glvisual, rgbFlag, dbFlag, stereoFlag,
redBits, greenBits, blueBits, alphaBits,
indexBits, depthBits, stencilBits,
accumRedBits, accumGreenBits,
accumBlueBits, accumAlphaBits,
numSamples)) {
/* something was invalid */
_mesa_free(vis);
return NULL;
}
return vis;
}
void
glFBDevDestroyVisual( GLFBDevVisualPtr visual )
{
if (visual)
_mesa_free(visual);
}
int
glFBDevGetVisualAttrib( const GLFBDevVisualPtr visual, int attrib)
{
(void) visual;
(void) attrib;
return -1;
}
GLFBDevBufferPtr
glFBDevCreateBuffer( const struct fb_fix_screeninfo *fixInfo,
const struct fb_var_screeninfo *varInfo,
const GLFBDevVisualPtr visual,
void *frontBuffer, void *backBuffer, size_t size )
{
GLFBDevBufferPtr buf;
ASSERT(visual);
ASSERT(frontBuffer);
ASSERT(size > 0);
if (visual->fix.visual != fixInfo->visual ||
visual->fix.type != fixInfo->type ||
visual->var.bits_per_pixel != varInfo->bits_per_pixel ||
visual->var.grayscale != varInfo->grayscale ||
visual->var.red.offset != varInfo->red.offset ||
visual->var.green.offset != varInfo->green.offset ||
visual->var.blue.offset != varInfo->blue.offset ||
visual->var.transp.offset != varInfo->transp.offset) {
/* visual mismatch! */
return NULL;
}
buf = CALLOC_STRUCT(GLFBDevBufferRec);
if (!buf)
return NULL;
_mesa_initialize_framebuffer(&buf->glframebuffer, &visual->glvisual,
visual->glvisual.haveDepthBuffer,
visual->glvisual.haveStencilBuffer,
visual->glvisual.haveAccumBuffer,
GL_FALSE);
buf->fix = *fixInfo; /* struct assignment */
buf->var = *varInfo; /* struct assignment */
buf->visual = visual; /* ptr assignment */
buf->frontStart = frontBuffer;
buf->size = size;
buf->bytesPerPixel = visual->var.bits_per_pixel / 8;
buf->rowStride = visual->var.xres_virtual * buf->bytesPerPixel;
buf->frontBottom = (GLubyte *) buf->frontStart
+ (visual->var.yres_virtual - 1) * buf->rowStride;
if (visual->glvisual.doubleBufferMode) {
if (backBuffer) {
buf->backStart = backBuffer;
buf->mallocBackBuffer = GL_FALSE;
}
else {
buf->backStart = _mesa_malloc(size);
if (!buf->backStart) {
_mesa_free_framebuffer_data(&buf->glframebuffer);
_mesa_free(buf);
return NULL;
}
buf->mallocBackBuffer = GL_TRUE;
}
buf->backBottom = (GLubyte *) buf->backStart
+ (visual->var.yres_virtual - 1) * buf->rowStride;
buf->curBottom = buf->backBottom;
}
else {
buf->backStart = NULL;
buf->mallocBackBuffer = GL_FALSE;
buf->backBottom = NULL;
buf->curBottom = buf->frontBottom;
}
return buf;
}
void
glFBDevDestroyBuffer( GLFBDevBufferPtr buffer )
{
if (buffer) {
/* check if destroying the current buffer */
GLFBDevBufferPtr curDraw = glFBDevGetCurrentDrawBuffer();
GLFBDevBufferPtr curRead = glFBDevGetCurrentReadBuffer();
if (buffer == curDraw || buffer == curRead) {
glFBDevMakeCurrent( NULL, NULL, NULL);
}
if (buffer->mallocBackBuffer) {
_mesa_free(buffer->backStart);
}
/* free the software depth, stencil, accum buffers */
_mesa_free_framebuffer_data(&buffer->glframebuffer);
_mesa_free(buffer);
}
}
int
glFBDevGetBufferAttrib( const GLFBDevBufferPtr buffer, int attrib)
{
(void) buffer;
(void) attrib;
return -1;
}
GLFBDevBufferPtr
glFBDevGetCurrentDrawBuffer( void )
{
GLFBDevContextPtr fbdevctx = glFBDevGetCurrentContext();
if (fbdevctx)
return fbdevctx->drawBuffer;
else
return NULL;
}
GLFBDevBufferPtr
glFBDevGetCurrentReadBuffer( void )
{
GLFBDevContextPtr fbdevctx = glFBDevGetCurrentContext();
if (fbdevctx)
return fbdevctx->readBuffer;
else
return NULL;
}
void
glFBDevSwapBuffers( GLFBDevBufferPtr buffer )
{
GLFBDevContextPtr fbdevctx = glFBDevGetCurrentContext();
if (!buffer || !buffer->visual->glvisual.doubleBufferMode)
return;
/* check if swapping currently bound buffer */
if (fbdevctx->drawBuffer == buffer) {
/* flush pending rendering */
_mesa_notifySwapBuffers(&fbdevctx->glcontext);
}
ASSERT(buffer->frontStart);
ASSERT(buffer->backStart);
_mesa_memcpy(buffer->frontStart, buffer->backStart, buffer->size);
}
GLFBDevContextPtr
glFBDevCreateContext( const GLFBDevVisualPtr visual, GLFBDevContextPtr share )
{
GLFBDevContextPtr ctx;
GLcontext *glctx;
struct dd_function_table functions;
ASSERT(visual);
ctx = CALLOC_STRUCT(GLFBDevContextRec);
if (!ctx)
return NULL;
/* build table of device driver functions */
_mesa_init_driver_functions(&functions);
functions.GetString = get_string;
functions.UpdateState = update_state;
functions.GetBufferSize = get_buffer_size;
if (!_mesa_initialize_context(&ctx->glcontext, &visual->glvisual,
share ? &share->glcontext : NULL,
&functions, (void *) ctx)) {
_mesa_free(ctx);
return NULL;
}
ctx->visual = visual;
/* Create module contexts */
glctx = (GLcontext *) &ctx->glcontext;
_swrast_CreateContext( glctx );
_ac_CreateContext( glctx );
_tnl_CreateContext( glctx );
_swsetup_CreateContext( glctx );
_swsetup_Wakeup( glctx );
/* swrast init */
{
struct swrast_device_driver *swdd;
swdd = _swrast_GetDeviceDriverReference( glctx );
swdd->SetBuffer = set_buffer;
if (visual->pixelFormat == PF_B8G8R8) {
swdd->WriteRGBASpan = write_rgba_span_B8G8R8;
swdd->WriteRGBSpan = write_rgb_span_B8G8R8;
swdd->WriteMonoRGBASpan = write_monorgba_span_B8G8R8;
swdd->WriteRGBAPixels = write_rgba_pixels_B8G8R8;
swdd->WriteMonoRGBAPixels = write_monorgba_pixels_B8G8R8;
swdd->ReadRGBASpan = read_rgba_span_B8G8R8;
swdd->ReadRGBAPixels = read_rgba_pixels_B8G8R8;
}
else if (visual->pixelFormat == PF_B8G8R8A8) {
swdd->WriteRGBASpan = write_rgba_span_B8G8R8A8;
swdd->WriteRGBSpan = write_rgb_span_B8G8R8A8;
swdd->WriteMonoRGBASpan = write_monorgba_span_B8G8R8A8;
swdd->WriteRGBAPixels = write_rgba_pixels_B8G8R8A8;
swdd->WriteMonoRGBAPixels = write_monorgba_pixels_B8G8R8A8;
swdd->ReadRGBASpan = read_rgba_span_B8G8R8A8;
swdd->ReadRGBAPixels = read_rgba_pixels_B8G8R8A8;
}
else if (visual->pixelFormat == PF_B5G6R5) {
swdd->WriteRGBASpan = write_rgba_span_B5G6R5;
swdd->WriteRGBSpan = write_rgb_span_B5G6R5;
swdd->WriteMonoRGBASpan = write_monorgba_span_B5G6R5;
swdd->WriteRGBAPixels = write_rgba_pixels_B5G6R5;
swdd->WriteMonoRGBAPixels = write_monorgba_pixels_B5G6R5;
swdd->ReadRGBASpan = read_rgba_span_B5G6R5;
swdd->ReadRGBAPixels = read_rgba_pixels_B5G6R5;
}
else if (visual->pixelFormat == PF_B5G5R5) {
swdd->WriteRGBASpan = write_rgba_span_B5G5R5;
swdd->WriteRGBSpan = write_rgb_span_B5G5R5;
swdd->WriteMonoRGBASpan = write_monorgba_span_B5G5R5;
swdd->WriteRGBAPixels = write_rgba_pixels_B5G5R5;
swdd->WriteMonoRGBAPixels = write_monorgba_pixels_B5G5R5;
swdd->ReadRGBASpan = read_rgba_span_B5G5R5;
swdd->ReadRGBAPixels = read_rgba_pixels_B5G5R5;
}
else if (visual->pixelFormat == PF_CI8) {
swdd->WriteCI32Span = write_index32_span_CI8;
swdd->WriteCI8Span = write_index8_span_CI8;
swdd->WriteMonoCISpan = write_monoindex_span_CI8;
swdd->WriteCI32Pixels = write_index_pixels_CI8;
swdd->WriteMonoCIPixels = write_monoindex_pixels_CI8;
swdd->ReadCI32Span = read_index_span_CI8;
swdd->ReadCI32Pixels = read_index_pixels_CI8;
}
else {
_mesa_printf("bad pixelformat: %d\n", visual->pixelFormat);
}
}
/* use default TCL pipeline */
{
TNLcontext *tnl = TNL_CONTEXT(glctx);
tnl->Driver.RunPipeline = _tnl_run_pipeline;
}
_mesa_enable_sw_extensions(glctx);
return ctx;
}
void
glFBDevDestroyContext( GLFBDevContextPtr context )
{
GLFBDevContextPtr fbdevctx = glFBDevGetCurrentContext();
if (context) {
if (fbdevctx == context) {
/* destroying current context */
_mesa_make_current2(NULL, NULL, NULL);
_mesa_notifyDestroy(&context->glcontext);
}
_mesa_free_context_data(&context->glcontext);
_mesa_free(context);
}
}
int
glFBDevGetContextAttrib( const GLFBDevContextPtr context, int attrib)
{
(void) context;
(void) attrib;
return -1;
}
GLFBDevContextPtr
glFBDevGetCurrentContext( void )
{
GET_CURRENT_CONTEXT(ctx);
return (GLFBDevContextPtr) ctx;
}
int
glFBDevMakeCurrent( GLFBDevContextPtr context,
GLFBDevBufferPtr drawBuffer,
GLFBDevBufferPtr readBuffer )
{
if (context && drawBuffer && readBuffer) {
/* Make sure the context's visual and the buffers' visuals match.
* XXX we might do this by comparing specific fields like bits_per_pixel,
* visual, etc. in the future.
*/
if (context->visual != drawBuffer->visual ||
context->visual != readBuffer->visual) {
return 0;
}
_mesa_make_current2( &context->glcontext,
&drawBuffer->glframebuffer,
&readBuffer->glframebuffer );
context->drawBuffer = drawBuffer;
context->readBuffer = readBuffer;
context->curBuffer = drawBuffer;
}
else {
/* unbind */
_mesa_make_current2( NULL, NULL, NULL );
}
return 1;
}
#endif /* USE_GLFBDEV_DRIVER */