diff options
Diffstat (limited to 'nx-X11/extras/Mesa/src/mesa/drivers/fbdev/glfbdev.c')
| -rw-r--r-- | nx-X11/extras/Mesa/src/mesa/drivers/fbdev/glfbdev.c | 861 |
1 files changed, 0 insertions, 861 deletions
diff --git a/nx-X11/extras/Mesa/src/mesa/drivers/fbdev/glfbdev.c b/nx-X11/extras/Mesa/src/mesa/drivers/fbdev/glfbdev.c deleted file mode 100644 index c8d9375b6..000000000 --- a/nx-X11/extras/Mesa/src/mesa/drivers/fbdev/glfbdev.c +++ /dev/null @@ -1,861 +0,0 @@ -/* - * 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 "buffers.h" -#include "context.h" -#include "extensions.h" -#include "fbobject.h" -#include "framebuffer.h" -#include "imports.h" -#include "renderbuffer.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; - size_t size; /* color buffer size in bytes */ - GLuint bytesPerPixel; -}; - -/* - * Derived from Mesa's GLcontext class. - */ -struct GLFBDevContextRec { - GLcontext glcontext; /* base class */ - GLFBDevVisualPtr visual; - GLFBDevBufferPtr drawBuffer; - GLFBDevBufferPtr readBuffer; - GLFBDevBufferPtr curBuffer; -}; - -/* - * Derived from Mesa's gl_renderbuffer class. - */ -struct GLFBDevRenderbufferRec { - struct gl_renderbuffer Base; - GLubyte *bottom; /* pointer to last row */ - GLuint rowStride; /* in bytes */ - GLboolean mallocedBuffer; -}; - - - -#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 = GLFBDEV_BUFFER(buffer); - *width = fbdevbuffer->var.xres_virtual; - *height = fbdevbuffer->var.yres_virtual; -} - - -static void -viewport(GLcontext *ctx, GLint x, GLint y, GLsizei w, GLsizei h) -{ - /* poll for window size change and realloc software Z/stencil/etc if needed */ - _mesa_ResizeBuffersMESA(); -} - - -/* specifies the buffer for swrast span rendering/reading */ -static void -set_buffer( GLcontext *ctx, GLframebuffer *buffer, GLuint bufferBit ) -{ - /* this is a no-op when using the new gl_renderbuffer span functions. */ -} - - -/* - * Generate code for span functions. - */ - -/* 24-bit BGR */ -#define NAME(PREFIX) PREFIX##_B8G8R8 -#define FORMAT GL_RGBA8 -#define SPAN_VARS \ - struct GLFBDevRenderbufferRec *frb = (struct GLFBDevRenderbufferRec *) rb; -#define INIT_PIXEL_PTR(P, X, Y) \ - GLubyte *P = frb->bottom - (Y) * frb->rowStride + (X) * 3 -#define INC_PIXEL_PTR(P) P += 3 -#define STORE_PIXEL(DST, X, Y, VALUE) \ - DST[0] = VALUE[BCOMP]; \ - DST[1] = VALUE[GCOMP]; \ - DST[2] = VALUE[RCOMP] -#define FETCH_PIXEL(DST, SRC) \ - DST[RCOMP] = SRC[2]; \ - DST[GCOMP] = SRC[1]; \ - DST[BCOMP] = SRC[0]; \ - DST[ACOMP] = CHAN_MAX - -#include "swrast/s_spantemp2.h" - - -/* 32-bit BGRA */ -#define NAME(PREFIX) PREFIX##_B8G8R8A8 -#define FORMAT GL_RGBA8 -#define SPAN_VARS \ - struct GLFBDevRenderbufferRec *frb = (struct GLFBDevRenderbufferRec *) rb; -#define INIT_PIXEL_PTR(P, X, Y) \ - GLubyte *P = frb->bottom - (Y) * frb->rowStride + (X) * 4 -#define INC_PIXEL_PTR(P) P += 4 -#define STORE_PIXEL(DST, X, Y, VALUE) \ - DST[0] = VALUE[BCOMP]; \ - DST[1] = VALUE[GCOMP]; \ - DST[2] = VALUE[RCOMP]; \ - DST[3] = VALUE[ACOMP] -#define FETCH_PIXEL(DST, SRC) \ - DST[RCOMP] = SRC[2]; \ - DST[GCOMP] = SRC[1]; \ - DST[BCOMP] = SRC[0]; \ - DST[ACOMP] = SRC[3] - -#include "swrast/s_spantemp2.h" - - -/* 16-bit BGR (XXX implement dithering someday) */ -#define NAME(PREFIX) PREFIX##_B5G6R5 -#define FORMAT GL_RGBA8 -#define SPAN_VARS \ - struct GLFBDevRenderbufferRec *frb = (struct GLFBDevRenderbufferRec *) rb; -#define INIT_PIXEL_PTR(P, X, Y) \ - GLushort *P = (GLushort *) (frb->bottom - (Y) * frb->rowStride + (X) * 2) -#define INC_PIXEL_PTR(P) P += 1 -#define STORE_PIXEL(DST, X, Y, VALUE) \ - DST[0] = ( (((VALUE[RCOMP]) & 0xf8) << 8) | (((VALUE[GCOMP]) & 0xfc) << 3) | ((VALUE[BCOMP]) >> 3) ) -#define FETCH_PIXEL(DST, SRC) \ - DST[RCOMP] = ( (((SRC[0]) >> 8) & 0xf8) | (((SRC[0]) >> 11) & 0x7) ); \ - DST[GCOMP] = ( (((SRC[0]) >> 3) & 0xfc) | (((SRC[0]) >> 5) & 0x3) ); \ - DST[BCOMP] = ( (((SRC[0]) << 3) & 0xf8) | (((SRC[0]) ) & 0x7) ); \ - DST[ACOMP] = CHAN_MAX - -#include "swrast/s_spantemp2.h" - - -/* 15-bit BGR (XXX implement dithering someday) */ -#define NAME(PREFIX) PREFIX##_B5G5R5 -#define FORMAT GL_RGBA8 -#define SPAN_VARS \ - struct GLFBDevRenderbufferRec *frb = (struct GLFBDevRenderbufferRec *) rb; -#define INIT_PIXEL_PTR(P, X, Y) \ - GLushort *P = (GLushort *) (frb->bottom - (Y) * frb->rowStride + (X) * 2) -#define INC_PIXEL_PTR(P) P += 1 -#define STORE_PIXEL(DST, X, Y, VALUE) \ - DST[0] = ( (((VALUE[RCOMP]) & 0xf8) << 7) | (((VALUE[GCOMP]) & 0xf8) << 2) | ((VALUE[BCOMP]) >> 3) ) -#define FETCH_PIXEL(DST, SRC) \ - DST[RCOMP] = ( (((SRC[0]) >> 7) & 0xf8) | (((SRC[0]) >> 10) & 0x7) ); \ - DST[GCOMP] = ( (((SRC[0]) >> 2) & 0xf8) | (((SRC[0]) >> 5) & 0x7) ); \ - DST[BCOMP] = ( (((SRC[0]) << 3) & 0xf8) | (((SRC[0]) ) & 0x7) ); \ - DST[ACOMP] = CHAN_MAX - -#include "swrast/s_spantemp2.h" - - -/* 8-bit color index */ -#define NAME(PREFIX) PREFIX##_CI8 -#define FORMAT GL_COLOR_INDEX8_EXT -#define SPAN_VARS \ - struct GLFBDevRenderbufferRec *frb = (struct GLFBDevRenderbufferRec *) rb; -#define INIT_PIXEL_PTR(P, X, Y) \ - GLubyte *P = frb->bottom - (Y) * frb->rowStride + (X) -#define INC_PIXEL_PTR(P) P += 1 -#define STORE_PIXEL(DST, X, Y, VALUE) \ - *DST = VALUE[0] -#define FETCH_PIXEL(DST, SRC) \ - DST = SRC[0] - -#include "swrast/s_spantemp2.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 GLFBDevProc -glFBDevGetProcAddress( const char *procName ) -{ - struct name_address { - const char *name; - const GLFBDevProc func; - }; - static const struct name_address functions[] = { - { "glFBDevGetString", (GLFBDevProc) glFBDevGetString }, - { "glFBDevGetProcAddress", (GLFBDevProc) glFBDevGetProcAddress }, - { "glFBDevCreateVisual", (GLFBDevProc) glFBDevCreateVisual }, - { "glFBDevDestroyVisual", (GLFBDevProc) glFBDevDestroyVisual }, - { "glFBDevGetVisualAttrib", (GLFBDevProc) glFBDevGetVisualAttrib }, - { "glFBDevCreateBuffer", (GLFBDevProc) glFBDevCreateBuffer }, - { "glFBDevDestroyBuffer", (GLFBDevProc) glFBDevDestroyBuffer }, - { "glFBDevGetBufferAttrib", (GLFBDevProc) glFBDevGetBufferAttrib }, - { "glFBDevGetCurrentDrawBuffer", (GLFBDevProc) glFBDevGetCurrentDrawBuffer }, - { "glFBDevGetCurrentReadBuffer", (GLFBDevProc) glFBDevGetCurrentReadBuffer }, - { "glFBDevSwapBuffers", (GLFBDevProc) glFBDevSwapBuffers }, - { "glFBDevCreateContext", (GLFBDevProc) glFBDevCreateContext }, - { "glFBDevDestroyContext", (GLFBDevProc) glFBDevDestroyContext }, - { "glFBDevGetContextAttrib", (GLFBDevProc) glFBDevGetContextAttrib }, - { "glFBDevGetCurrentContext", (GLFBDevProc) glFBDevGetCurrentContext }, - { "glFBDevMakeCurrent", (GLFBDevProc) 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) -{ - /* XXX unfinished */ - (void) visual; - (void) attrib; - return -1; -} - - -static void -delete_renderbuffer(struct gl_renderbuffer *rb) -{ - struct GLFBDevRenderbufferRec *frb = (struct GLFBDevRenderbufferRec *) rb; - if (frb->mallocedBuffer) { - _mesa_free(frb->Base.Data); - } - _mesa_free(frb); -} - - -static GLboolean -renderbuffer_storage(GLcontext *ctx, struct gl_renderbuffer *rb, - GLenum internalFormat, GLuint width, GLuint height) -{ - /* no-op: the renderbuffer storage is allocated just once when it's - * created. Never resized or reallocated. - */ - return GL_TRUE; -} - - -static struct GLFBDevRenderbufferRec * -new_glfbdev_renderbuffer(void *bufferStart, int pixelFormat) -{ - struct GLFBDevRenderbufferRec *rb = CALLOC_STRUCT(GLFBDevRenderbufferRec); - if (rb) { - GLuint name = 0; - _mesa_init_renderbuffer(&rb->Base, name); - - rb->Base.Delete = delete_renderbuffer; - rb->Base.AllocStorage = renderbuffer_storage; - - if (pixelFormat == PF_B8G8R8) { - rb->Base.GetRow = get_row_B8G8R8; - rb->Base.GetValues = get_values_B8G8R8; - rb->Base.PutRow = put_row_B8G8R8; - rb->Base.PutMonoRow = put_mono_row_B8G8R8; - rb->Base.PutValues = put_values_B8G8R8; - rb->Base.PutMonoValues = put_mono_values_B8G8R8; - } - else if (pixelFormat == PF_B8G8R8A8) { - rb->Base.GetRow = get_row_B8G8R8A8; - rb->Base.GetValues = get_values_B8G8R8A8; - rb->Base.PutRow = put_row_B8G8R8A8; - rb->Base.PutMonoRow = put_mono_row_B8G8R8A8; - rb->Base.PutValues = put_values_B8G8R8A8; - rb->Base.PutMonoValues = put_mono_values_B8G8R8A8; - } - else if (pixelFormat == PF_B5G6R5) { - rb->Base.GetRow = get_row_B5G6R5; - rb->Base.GetValues = get_values_B5G6R5; - rb->Base.PutRow = put_row_B5G6R5; - rb->Base.PutMonoRow = put_mono_row_B5G6R5; - rb->Base.PutValues = put_values_B5G6R5; - rb->Base.PutMonoValues = put_mono_values_B5G6R5; - } - else if (pixelFormat == PF_B5G5R5) { - rb->Base.GetRow = get_row_B5G5R5; - rb->Base.GetValues = get_values_B5G5R5; - rb->Base.PutRow = put_row_B5G5R5; - rb->Base.PutMonoRow = put_mono_row_B5G5R5; - rb->Base.PutValues = put_values_B5G5R5; - rb->Base.PutMonoValues = put_mono_values_B5G5R5; - } - else if (pixelFormat == PF_CI8) { - rb->Base.GetRow = get_row_CI8; - rb->Base.GetValues = get_values_CI8; - rb->Base.PutRow = put_row_CI8; - rb->Base.PutMonoRow = put_mono_row_CI8; - rb->Base.PutValues = put_values_CI8; - rb->Base.PutMonoValues = put_mono_values_CI8; - } - - if (pixelFormat == PF_CI8) { - rb->Base.InternalFormat = GL_COLOR_INDEX8_EXT; - rb->Base._BaseFormat = GL_COLOR_INDEX; - } - else { - rb->Base.InternalFormat = GL_RGBA; - rb->Base._BaseFormat = GL_RGBA; - } - rb->Base.DataType = GL_UNSIGNED_BYTE; - rb->Base.Data = bufferStart; - } - return rb; -} - - -GLFBDevBufferPtr -glFBDevCreateBuffer( const struct fb_fix_screeninfo *fixInfo, - const struct fb_var_screeninfo *varInfo, - const GLFBDevVisualPtr visual, - void *frontBuffer, void *backBuffer, size_t size ) -{ - struct GLFBDevRenderbufferRec *frontrb, *backrb; - 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; - - /* basic framebuffer setup */ - _mesa_initialize_framebuffer(&buf->glframebuffer, &visual->glvisual); - /* add front renderbuffer */ - frontrb = new_glfbdev_renderbuffer(frontBuffer, visual->pixelFormat); - _mesa_add_renderbuffer(&buf->glframebuffer, BUFFER_FRONT_LEFT, - &frontrb->Base); - /* add back renderbuffer */ - if (visual->glvisual.doubleBufferMode) { - backrb = new_glfbdev_renderbuffer(backBuffer, visual->pixelFormat); - _mesa_add_renderbuffer(&buf->glframebuffer, BUFFER_BACK_LEFT, - &backrb->Base); - } - /* add software renderbuffers */ - _mesa_add_soft_renderbuffers(&buf->glframebuffer, - GL_FALSE, /* color */ - visual->glvisual.haveDepthBuffer, - visual->glvisual.haveStencilBuffer, - visual->glvisual.haveAccumBuffer, - GL_FALSE, /* alpha */ - GL_FALSE /* aux bufs */); - - - - buf->fix = *fixInfo; /* struct assignment */ - buf->var = *varInfo; /* struct assignment */ - buf->visual = visual; /* ptr assignment */ - buf->size = size; - buf->bytesPerPixel = visual->var.bits_per_pixel / 8; - frontrb->rowStride = visual->var.xres_virtual * buf->bytesPerPixel; - frontrb->bottom = (GLubyte *) frontrb->Base.Data - + (visual->var.yres_virtual - 1) * frontrb->rowStride; - - if (visual->glvisual.doubleBufferMode) { - if (!backBuffer) { - /* malloc a back buffer */ - backrb->Base.Data = _mesa_malloc(size); - if (!backrb->Base.Data) { - _mesa_free_framebuffer_data(&buf->glframebuffer); - _mesa_free(buf); - return NULL; - } - backrb->mallocedBuffer = GL_TRUE; - } - backrb->rowStride = frontrb->rowStride; - backrb->bottom = (GLubyte *) backrb->Base.Data - + (visual->var.yres_virtual - 1) * backrb->rowStride; - } - else { - backrb->bottom = NULL; - backrb->rowStride = 0; - } - - 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); - } - /* 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(); - struct GLFBDevRenderbufferRec *frontrb = (struct GLFBDevRenderbufferRec *) - buffer->glframebuffer.Attachment[BUFFER_FRONT_LEFT].Renderbuffer; - struct GLFBDevRenderbufferRec *backrb = (struct GLFBDevRenderbufferRec *) - buffer->glframebuffer.Attachment[BUFFER_BACK_LEFT].Renderbuffer; - - 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(frontrb->Base.Data); - ASSERT(backrb->Base.Data); - _mesa_memcpy(frontrb->Base.Data, backrb->Base.Data, 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; - functions.Viewport = viewport; - - 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; - - /* no longer used */ - swdd->WriteRGBASpan = NULL; - swdd->WriteRGBSpan = NULL; - swdd->WriteMonoRGBASpan = NULL; - swdd->WriteRGBAPixels = NULL; - swdd->WriteMonoRGBAPixels = NULL; - swdd->ReadRGBASpan = NULL; - swdd->ReadRGBAPixels = NULL; - } - - /* 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_current(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_current( &context->glcontext, - &drawBuffer->glframebuffer, - &readBuffer->glframebuffer ); - context->drawBuffer = drawBuffer; - context->readBuffer = readBuffer; - context->curBuffer = drawBuffer; - } - else { - /* unbind */ - _mesa_make_current( NULL, NULL, NULL ); - } - - return 1; -} - -#endif |