diff options
Diffstat (limited to 'src/mesa/drivers/ggi/ggimesa.c')
| -rw-r--r-- | src/mesa/drivers/ggi/ggimesa.c | 670 |
1 files changed, 0 insertions, 670 deletions
diff --git a/src/mesa/drivers/ggi/ggimesa.c b/src/mesa/drivers/ggi/ggimesa.c deleted file mode 100644 index bc08144d663..00000000000 --- a/src/mesa/drivers/ggi/ggimesa.c +++ /dev/null @@ -1,670 +0,0 @@ -/* GGI-Driver for MESA - * - * Copyright (C) 1997-1998 Uwe Maurer - [email protected] - * 2002 Filip Spacek - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Library General Public - * License as published by the Free Software Foundation; either - * version 2 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Library General Public License for more details. - * - * You should have received a copy of the GNU Library General Public - * License along with this library; if not, write to the Free - * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - * --------------------------------------------------------------------- - * This code was derived from the following source of information: - * - * svgamesa.c and ddsample.c by Brian Paul - * - */ - -#ifdef HAVE_CONFIG_H -#include "conf.h" -#endif - -#include <ggi/mesa/ggimesa_int.h> -#include <ggi/mesa/debug.h> -#include "main/extensions.h" -#include "main/buffers.h" -#include "main/colormac.h" -#include "main/imports.h" -#include "main/matrix.h" -#include "main/teximage.h" -#include "main/texformat.h" -#include "main/texstore.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 "vbo/vbo.h" - -/* We use LibGG to manage config files */ -#include <ggi/gg.h> - - -/* XXX: Those #defines should be provided via - * config.h - */ -#define GGIMESAPATHTAG "pAtHTAg" -#define GGIMESACONFDIR "pAtHTAg/usr/local/etc/ggi" -#define GGIMESATAGLEN 7 -#define GGIMESACONFFILE "ggimesa.conf" - - -/* Static variables - */ -static int _ggimesaLibIsUp = 0; -static void *_ggimesaConfigHandle; -static char _ggimesaconfstub[512] = GGIMESACONFDIR; -static char *_ggimesaconfdir = _ggimesaconfstub+GGIMESATAGLEN; - -int _ggimesaDebugSync = 0; -uint32 _ggimesaDebugState = 0; - - - -/* Extension ID. Defaulting to -1 should make segfault on abuse more likely... - */ -ggi_extid _ggiMesaID = -1; - - -#define SUBLIB_PREFIX "MesaGGIdl_" - - -/* - * Returns the directory where global config files are kept - */ - -const char *ggiMesaGetConfDir(void) -{ -#ifdef __WIN32__ - /* On Win32 we allow overriding of the compiled in path. */ - const char *envdir = getenv("GGI_CONFDIR"); - if (envdir) return envdir; -#endif - return _ggimesaconfdir; -} - - -/* Dummy function which returns -1 - We use this to reset the function pointers */ -static int _ggi_error(void) -{ - GGIMESADPRINT_CORE("_ggi_error() called\n"); - - return -1; -} - - -static int changed(ggi_visual_t vis, int whatchanged) -{ - GLcontext *ctx; - ctx = _mesa_get_current_context(); - - GGIMESADPRINT_CORE("changed() called\n"); - - switch (whatchanged) { - case GGI_CHG_APILIST: - { - char api[GGI_MAX_APILEN]; - char args[GGI_MAX_APILEN]; - int i; - const char *fname; - ggi_dlhandle *lib; - - GLvisual *gl_vis = &(LIBGGI_MESAEXT(vis)->mesa_visual.gl_visual); - GLframebuffer *gl_fb = &(LIBGGI_MESAEXT(vis)->mesa_buffer); - - /* Initialize the framebuffer to provide all necessary - buffers in software. The target libraries that are loaded - next are free to modify this according to their - capabilities. - */ - /* FIXME: if the target changes capabilities we'll leak - swrast's memory !!! Need to deallocate first */ - _mesa_initialize_framebuffer(gl_fb, gl_vis, - gl_vis->depthBits > 0, - gl_vis->stencilBits > 0, - gl_vis->accumRedBits > 0, - gl_vis->alphaBits > 0); - - for (i = 0; ggiGetAPI(vis, i, api, args) == 0; i++) { - strcat(api, "-mesa"); - GGIMESADPRINT_CORE("GGIMesa: looking for" - "a sublib named %s\n", api); - fname = ggMatchConfig(_ggimesaConfigHandle, api, NULL); - if (fname == NULL) { - /* No special implementation for this sublib */ - continue; - } - lib = ggiExtensionLoadDL(vis, fname, args, NULL, - SUBLIB_PREFIX); - } - - /* The targets have cleared everything they can do from - the framebuffer structure so we provide the rest in sw - */ - /*_swrast_alloc_buffers(gl_fb);*/ - - break; - } - } - return 0; -} - - -int ggiMesaInit() -{ - int err; - char *str; - char *conffile; - - GGIMESADPRINT_CORE("ggiMesaInit() called\n"); - - _ggimesaLibIsUp++; - if (_ggimesaLibIsUp > 1) return 0; /* Initialize only at first call */ - - str = getenv("GGIMESA_DEBUGSYNC"); - if (str != NULL) { - _ggimesaDebugSync = 1; - } - - str = getenv("GGIMESA_DEBUG"); - if (str != NULL) { - _ggimesaDebugState = atoi(str); - GGIMESADPRINT_CORE("%s Debugging=%d\n", - _ggimesaDebugSync ? "sync" : "async", - _ggimesaDebugState); - } - - - conffile = malloc(strlen(ggiMesaGetConfDir()) + 1 - + strlen(GGIMESACONFFILE) +1); - if (conffile == NULL) { - fprintf(stderr, "GGIMesa: unable to allocate memory for config filename.\n"); - return GGI_ENOMEM; - } - sprintf(conffile, "%s%c%s", - ggiMesaGetConfDir(), '/', GGIMESACONFFILE); - err = ggLoadConfig(conffile, &_ggimesaConfigHandle); - if (err != GGI_OK) { - fprintf(stderr, "GGIMesa: Couldn't open %s\n", - conffile); - free(conffile); - _ggimesaLibIsUp--; - return err; - } - free(conffile); - - _ggiMesaID = ggiExtensionRegister("GGIMesa", - sizeof(struct ggi_mesa_ext), changed); - if (_ggiMesaID < 0) { - fprintf(stderr, "GGIMesa: failed to register as extension\n"); - _ggimesaLibIsUp--; - ggFreeConfig(_ggimesaConfigHandle); - return _ggiMesaID; - } - - return 0; -} - -int ggiMesaExit(void) -{ - int rc; - - GGIMESADPRINT_CORE("ggiMesaExit() called\n"); - - if (!_ggimesaLibIsUp) return -1; - - if (_ggimesaLibIsUp > 1) { - /* Exit only at last call */ - _ggimesaLibIsUp--; - return 0; - } - - rc = ggiExtensionUnregister(_ggiMesaID); - ggFreeConfig(_ggimesaConfigHandle); - - _ggimesaLibIsUp = 0; - - return rc; -} - - - - -static void gl_ggiUpdateState(GLcontext *ctx, GLuint new_state); - - -static void gl_ggiGetSize(GLframebuffer *fb, GLuint *width, GLuint *height) -{ - /* FIXME: this is a hack to work around the new interface */ - GLcontext *ctx; - ggi_mesa_context_t ggi_ctx; - ctx = _mesa_get_current_context(); - ggi_ctx = (ggi_mesa_context_t)ctx->DriverCtx; - - GGIMESADPRINT_CORE("gl_ggiGetSize() called\n"); - - *width = LIBGGI_VIRTX(ggi_ctx->ggi_visual); - *height = LIBGGI_VIRTY(ggi_ctx->ggi_visual); - printf("returning %d, %d\n", *width, *height); -} - -/** - * We only implement this function as a mechanism to check if the - * framebuffer size has changed (and update corresponding state). - */ -static void gl_ggiViewport(GLcontext *ctx, GLint x, GLint y, GLsizei w, GLsizei h) -{ - GLuint newWidth, newHeight; - GLframebuffer *buffer = ctx->WinSysDrawBuffer; - gl_ggiGetSize( buffer, &newWidth, &newHeight ); - if (buffer->Width != newWidth || buffer->Height != newHeight) { - _mesa_resize_framebuffer(ctx, buffer, newWidth, newHeight ); - } -} - - -static void gl_ggiSetIndex(GLcontext *ctx, GLuint ci) -{ - ggi_mesa_context_t ggi_ctx = (ggi_mesa_context_t)ctx->DriverCtx; - - GGIMESADPRINT_CORE("gl_ggiSetIndex() called\n"); - - ggiSetGCForeground(ggi_ctx->ggi_visual, ci); - ggi_ctx->color = (ggi_pixel)ci; -} - -static void gl_ggiSetClearIndex(GLcontext *ctx, GLuint ci) -{ - ggi_mesa_context_t ggi_ctx = (ggi_mesa_context_t)ctx->DriverCtx; - - GGIMESADPRINT_CORE("gl_ggiSetClearIndex() called\n"); - - ggiSetGCForeground(ggi_ctx->ggi_visual, ci); - ggi_ctx->clearcolor = (ggi_pixel)ci; -} - -static void gl_ggiSetClearColor(GLcontext *ctx, const GLfloat color[4]) -{ - ggi_mesa_context_t ggi_ctx = (ggi_mesa_context_t)ctx->DriverCtx; - ggi_color rgb; - ggi_pixel col; - GLubyte byteColor[3]; - - GGIMESADPRINT_CORE("gl_ggiSetClearColor() called\n"); - - CLAMPED_FLOAT_TO_UBYTE(byteColor[0], color[0]); - CLAMPED_FLOAT_TO_UBYTE(byteColor[1], color[1]); - CLAMPED_FLOAT_TO_UBYTE(byteColor[2], color[2]); - - rgb.r = (uint16)byteColor[0] << SHIFT; - rgb.g = (uint16)byteColor[1] << SHIFT; - rgb.b = (uint16)byteColor[2] << SHIFT; - col = ggiMapColor(ggi_ctx->ggi_visual, &rgb); - ggiSetGCForeground(ggi_ctx->ggi_visual, col); - ggi_ctx->clearcolor = col; -} - -static void gl_ggiClear(GLcontext *ctx, GLbitfield mask) -{ - ggi_mesa_context_t ggi_ctx = (ggi_mesa_context_t)ctx->DriverCtx; - int x = ctx->DrawBuffer->_Xmin; - int y = ctx->DrawBuffer->_Ymin; - int w = ctx->DrawBuffer->_Xmax - x; - int h = ctx->DrawBuffer->_Ymax - y; - GLboolean all = (w == ctx->DrawBuffer->Width && h == ctx->DrawBuffer->height) - - GGIMESADPRINT_CORE("gl_ggiClear() called\n"); - - if (mask & (DD_FRONT_LEFT_BIT | DD_BACK_LEFT_BIT)) { - ggiSetGCForeground(ggi_ctx->ggi_visual, ggi_ctx->clearcolor); - - if (all) { - int w, h; - w = LIBGGI_VIRTX(ggi_ctx->ggi_visual); - h = LIBGGI_VIRTX(ggi_ctx->ggi_visual); - ggiDrawBox(ggi_ctx->ggi_visual, 0, 0, w, h); - } else { - ggiDrawBox(ggi_ctx->ggi_visual, x, y, //FLIP(y), - width, height); - } - ggiSetGCForeground(ggi_ctx->ggi_visual, ggi_ctx->color); - - mask &= ~(DD_FRONT_LEFT_BIT | DD_BACK_LEFT_BIT); - } - _swrast_Clear(ctx, mask); - -} - - -/* Set the buffer used for reading */ -/* XXX support for separate read/draw buffers hasn't been tested */ -static GLboolean gl_ggiSetBuffer(GLcontext *ctx, GLframebuffer *buffer, GLuint bufferBit) -{ - ggi_mesa_context_t ggi_ctx = (ggi_mesa_context_t)ctx->DriverCtx; - - printf("set read %d\n", bufferBit); - GGIMESADPRINT_CORE("gl_ggiSetBuffer() called\n"); - - if (bufferBit == DD_FRONT_LEFT_BIT) - { - ggiSetReadFrame(ggi_ctx->ggi_visual, - ggiGetDisplayFrame(ggi_ctx->ggi_visual)); - ggiSetWriteFrame(ggi_ctx->ggi_visual, - ggiGetDisplayFrame(ggi_ctx->ggi_visual)); - return GL_TRUE; - } - else if (bufferBit == DD_BACK_LEFT_BIT) - { - ggiSetReadFrame(ggi_ctx->ggi_visual, - ggiGetDisplayFrame(ggi_ctx->ggi_visual)?0 : 1); - ggiSetWriteFrame(ggi_ctx->ggi_visual, - ggiGetDisplayFrame(ggi_ctx->ggi_visual)?0 : 1); - return GL_TRUE; - } - else - return GL_FALSE; -} - - -static const GLubyte * gl_ggiGetString(GLcontext *ctx, GLenum name) -{ - GGIMESADPRINT_CORE("gl_ggiGetString() called\n"); - - if (name == GL_RENDERER) { - return (GLubyte *) "Mesa GGI"; - } else { - return NULL; - } -} - -static void gl_ggiFlush(GLcontext *ctx) -{ - ggi_mesa_context_t ggi_ctx = (ggi_mesa_context_t)ctx->DriverCtx; - - GGIMESADPRINT_CORE("gl_ggiFlush() called\n"); - - ggiFlush(ggi_ctx->ggi_visual); -} - -static void gl_ggiIndexMask(GLcontext *ctx, GLuint mask) -{ - GGIMESADPRINT_CORE("gl_ggiIndexMask() called\n"); -} - -static void gl_ggiColorMask(GLcontext *ctx, GLboolean rmask, GLboolean gmask, - GLboolean bmask, GLboolean amask) -{ - GGIMESADPRINT_CORE("gl_ggiColorMask() called\n"); -} - -static void gl_ggiEnable(GLcontext *ctx, GLenum pname, GLboolean state) -{ - GGIMESADPRINT_CORE("gl_ggiEnable() called\n"); -} - -static void gl_ggiSetupPointers(GLcontext *ctx) -{ - TNLcontext *tnl; - - GGIMESADPRINT_CORE("gl_ggiSetupPointers() called\n"); - - /* Plug in default driver functions */ - _mesa_init_driver_functions(&ctx->Driver); - - /* Plug in ggi-specific functions */ - ctx->Driver.GetString = gl_ggiGetString; - ctx->Driver.GetBufferSize = gl_ggiGetSize; - ctx->Driver.Viewport = gl_ggiViewport; - ctx->Driver.Finish = gl_ggiFlush; - ctx->Driver.Flush = gl_ggiFlush; - ctx->Driver.Clear = gl_ggiClear; - ctx->Driver.ClearIndex = gl_ggiSetClearIndex; - ctx->Driver.ClearColor = gl_ggiSetClearColor; - ctx->Driver.IndexMask = gl_ggiIndexMask; - ctx->Driver.ColorMask = gl_ggiColorMask; - ctx->Driver.Enable = gl_ggiEnable; - ctx->Driver.UpdateState = gl_ggiUpdateState; - - /* Initialize TNL driver interface */ - tnl = TNL_CONTEXT(ctx); - tnl->Driver.RunPipeline = _tnl_run_pipeline; - - /* Install setup for tnl */ - _swsetup_Wakeup(ctx); -} - -static void get_mode_info(ggi_visual_t vis, int *r, int *g, int *b, - GLboolean *rgb, GLboolean *db, int *ci) -{ - unsigned int i; - - *r = 0; - *g = 0; - *b = 0; - - for(i = 0; i < sizeof(ggi_pixel)*8; ++i) { - int mask = 1 << i; - if (LIBGGI_PIXFMT(vis)->red_mask & mask) - ++(*r); - if (LIBGGI_PIXFMT(vis)->green_mask & mask) - ++(*g); - if (LIBGGI_PIXFMT(vis)->blue_mask & mask) - ++(*b); - } - - *rgb = GT_SCHEME(LIBGGI_MODE(vis)->graphtype) == GT_TRUECOLOR; - *db = LIBGGI_MODE(vis)->frames > 1; - *ci = GT_SIZE(LIBGGI_MODE(vis)->graphtype); - - printf("rgb (%d, %d, %d) db %d, rgb %d ci %d\n",*r,*g,*b,*db,*rgb,*ci); -} - - -int ggiMesaAttach(ggi_visual_t vis) -{ - int rc; - - GGIMESADPRINT_CORE("ggiMesaAttach() called\n"); - - rc = ggiExtensionAttach(vis, _ggiMesaID); - if (rc == 0) - { - int r, g, b, ci; - GLboolean rgb, db; - GLvisual *gl_visual; - - /* We are creating the primary instance */ - memset(LIBGGI_MESAEXT(vis), 0, sizeof(struct ggi_mesa_ext)); - LIBGGI_MESAEXT(vis)->update_state = (void *)_ggi_error; - LIBGGI_MESAEXT(vis)->setup_driver = (void *)_ggi_error; - - /* Initialize default mesa visual */ - get_mode_info(vis, &r, &g, &b, &rgb, &db, &ci); - gl_visual = &(LIBGGI_MESAEXT(vis)->mesa_visual.gl_visual); - _mesa_initialize_visual(gl_visual, - rgb, db, 0 /* No stereo */, - r, g, b, 0 /* No alpha */, ci, - 0 /* No depth */, 0 /* No stencil */, - 0, 0, 0, 0 /* No accum */, 0); - - /* Now fake an "API change" so the right libs get loaded */ - changed(vis, GGI_CHG_APILIST); - } - - return rc; -} - -int ggiMesaDetach(ggi_visual_t vis) -{ - GGIMESADPRINT_CORE("ggiMesaDetach() called\n"); - - return ggiExtensionDetach(vis, _ggiMesaID); -} - -int ggiMesaExtendVisual(ggi_visual_t vis, GLboolean alpha_flag, - GLboolean stereo_flag, GLint depth_size, - GLint stencil_size, GLint accum_red_size, - GLint accum_green_size, GLint accum_blue_size, - GLint accum_alpha_size, GLint num_samples) -{ - GLvisual *gl_vis = &(LIBGGI_MESAEXT(vis)->mesa_visual.gl_visual); - int r, g, b, ci; - GLboolean db, rgb; - - get_mode_info(vis, &r, &g, &b, &rgb, &db, &ci); - - /* Initialize the visual with the provided information */ - _mesa_initialize_visual(gl_vis, - rgb, db, stereo_flag, - r, g, b, 0 /* FIXME */, ci, - depth_size, stencil_size, - accum_red_size, accum_green_size, - accum_blue_size, accum_alpha_size, 0); - - /* Now fake an "API change" so the right libs get loaded. After all, - extending the visual by all these new buffers could be considered - a "mode change" which requires an "API change". - */ - changed(vis, GGI_CHG_APILIST); - - return 0; -} - - -ggi_mesa_context_t ggiMesaCreateContext(ggi_visual_t vis) -{ - ggi_mesa_context_t ctx; - int err; - - GGIMESADPRINT_CORE("ggiMesaCreateContext() called\n"); - - ctx = (ggi_mesa_context_t)malloc(sizeof(struct ggi_mesa_context)); - if (!ctx) - return NULL; - - ctx->ggi_visual = vis; - ctx->color = 0; - - ctx->gl_ctx = - _mesa_create_context(&(LIBGGI_MESAEXT(vis)->mesa_visual.gl_visual), - NULL, (void *) ctx, GL_FALSE); - if (!ctx->gl_ctx) - goto free_context; - - _mesa_enable_sw_extensions(ctx->gl_ctx); - - _swrast_CreateContext(ctx->gl_ctx); - _vbo_CreateContext(ctx->gl_ctx); - _tnl_CreateContext(ctx->gl_ctx); - _swsetup_CreateContext(ctx->gl_ctx); - - gl_ggiSetupPointers(ctx->gl_ctx); - - /* Make sure that an appropriate sublib has been loaded */ - if (!LIBGGI_MESAEXT(ctx->ggi_visual)->setup_driver){ - GGIMESADPRINT_CORE("setup_driver==NULL!\n"); - GGIMESADPRINT_CORE("Please check your config files!\n"); - goto free_context; - } - - /* Set up the sublib driver */ - err = LIBGGI_MESAEXT(ctx->ggi_visual)->setup_driver(ctx); - if (err){ - GGIMESADPRINT_CORE("setup_driver failed (err = %d)", err); - goto free_gl_context; - } - - return ctx; - -free_gl_context: - _mesa_destroy_context(ctx->gl_ctx); -free_context: - free(ctx); - - return NULL; -} - -void ggiMesaDestroyContext(ggi_mesa_context_t ctx) -{ - GGIMESADPRINT_CORE("ggiMesaDestroyContext() called\n"); - - if(!ctx) - return; - - _mesa_destroy_context(ctx->gl_ctx); - free(ctx); -} - -void ggiMesaMakeCurrent(ggi_mesa_context_t ctx, ggi_visual_t vis) -{ - GGIMESADPRINT_CORE("ggiMesaMakeCurrent(ctx = %p) called\n", ctx); - - /* FIXME: clean up where are ggi_vis */ - if (ctx->ggi_visual != vis) { - GGIMESADPRINT_CORE("Cannot migrate GL contexts\n"); - return; - } - - _mesa_make_current(ctx->gl_ctx, &LIBGGI_MESAEXT(vis)->mesa_buffer); -} - - -/* - * Swap front/back buffers for current context if double buffered. - */ -void ggiMesaSwapBuffers(void) -{ - GLcontext *ctx; - ggi_mesa_context_t ggi_ctx; - ctx = _mesa_get_current_context(); - ggi_ctx = (ggi_mesa_context_t)ctx->DriverCtx; - - GGIMESADPRINT_CORE("ggiMesaSwapBuffers() called\n"); - - _mesa_notifySwapBuffers(ctx); - gl_ggiFlush(ctx); - - ggiSetDisplayFrame(ggi_ctx->ggi_visual, - !ggiGetDisplayFrame(ggi_ctx->ggi_visual)); - ggiSetWriteFrame(ggi_ctx->ggi_visual, - !ggiGetWriteFrame(ggi_ctx->ggi_visual)); - ggiSetReadFrame(ggi_ctx->ggi_visual, - !ggiGetReadFrame(ggi_ctx->ggi_visual)); - - GGIMESADPRINT_CORE("swap disp: %d, write %d\n", - ggiGetDisplayFrame(ggi_ctx->ggi_visual), - ggiGetWriteFrame(ggi_ctx->ggi_visual)); -} - -static void gl_ggiUpdateState(GLcontext *ctx, GLuint new_state) -{ - ggi_mesa_context_t ggi_ctx = (ggi_mesa_context_t)ctx->DriverCtx; - - GGIMESADPRINT_CORE("gl_ggiUpdateState() called\n"); - - /* Propogate statechange information to swrast and swrast_setup - * modules. The GGI driver has no internal GL-dependent state. - */ - _swrast_InvalidateState(ctx, new_state); - _swsetup_InvalidateState(ctx, new_state); - _tnl_InvalidateState(ctx, new_state); - - /* XXX: Better use an assertion that bails out here on failure */ - if (!LIBGGI_MESAEXT(ggi_ctx->ggi_visual)->update_state) { - GGIMESADPRINT_CORE("update_state == NULL!\n"); - GGIMESADPRINT_CORE("Please check your config files!\n"); - ggiPanic(""); - } - - LIBGGI_MESAEXT(ggi_ctx->ggi_visual)->update_state(ggi_ctx); -} - |