* OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
-/* $XFree86: xc/lib/GL/mesa/src/drv/tdfx/tdfx_dd.c,v 1.10 2002/10/30 12:52:00 alanh Exp $ */
-/*
- * Original rewrite:
- * Gareth Hughes <gareth@valinux.com>, 29 Sep - 1 Oct 2000
- *
- * Authors:
- * Gareth Hughes <gareth@valinux.com>
- * Brian Paul <brianp@valinux.com>
- *
+/**
+ * \file tdfx_dd.c
+ * Device driver interface functions for 3Dfx based cards.
+ *
+ * \author Gareth Hughes <gareth@valinux.com> (Original rewrite 29 Sep - 1 Oct 2000)
+ * \author Brian Paul <brianp@valinux.com>
*/
#include "tdfx_context.h"
#include "tdfx_dd.h"
#include "tdfx_lock.h"
-#include "tdfx_vb.h"
#include "tdfx_pixels.h"
-#include "context.h"
-#include "enums.h"
-#include "swrast/swrast.h"
-#if defined(USE_X86_ASM)
-#include "x86/common_x86_asm.h"
-#endif
+#include "utils.h"
+#include "main/context.h"
-#define TDFX_DATE "20021125"
+#define DRIVER_DATE "20061113"
/* These are used in calls to FX_grColorMaskv() */
{
tdfxContextPtr fxMesa = (tdfxContextPtr) ctx->DriverCtx;
- switch ( name ) {
+ switch (name) {
case GL_RENDERER:
{
/* The renderer string must be per-context state to handle
* multihead correctly.
*/
- char *buffer = fxMesa->rendererString;
- char hardware[100];
+ char *const buffer = fxMesa->rendererString;
+ char hardware[64];
LOCK_HARDWARE(fxMesa);
- strcpy( hardware, fxMesa->Glide.grGetString(GR_HARDWARE) );
+ strncpy(hardware, fxMesa->Glide.grGetString(GR_HARDWARE),
+ sizeof(hardware));
+ hardware[sizeof(hardware) - 1] = '\0';
UNLOCK_HARDWARE(fxMesa);
- strcpy( buffer, "Mesa DRI " );
- strcat( buffer, TDFX_DATE );
- strcat( buffer, " " );
-
- if ( strcmp( hardware, "Voodoo3 (tm)" ) == 0 ) {
- strcat( buffer, "Voodoo3" );
- }
- else if ( strcmp( hardware, "Voodoo Banshee (tm)" ) == 0 ) {
- strcat( buffer, "VoodooBanshee" );
- }
- else if ( strcmp( hardware, "Voodoo4 (tm)" ) == 0 ) {
- strcat( buffer, "Voodoo4" );
+ if ((strncmp(hardware, "Voodoo3", 7) == 0)
+ || (strncmp(hardware, "Voodoo4", 7) == 0)
+ || (strncmp(hardware, "Voodoo5", 7) == 0)) {
+ hardware[7] = '\0';
}
- else if ( strcmp( hardware, "Voodoo5 (tm)" ) == 0 ) {
- strcat( buffer, "Voodoo5" );
+ else if (strncmp(hardware, "Voodoo Banshee", 14) == 0) {
+ strcpy(&hardware[6], "Banshee");
}
else {
/* unexpected result: replace spaces with hyphens */
int i;
- for ( i = 0 ; hardware[i] && i < 60 ; i++ ) {
- if ( hardware[i] == ' ' || hardware[i] == '\t' )
+ for (i = 0; i < sizeof(hardware) && hardware[i]; i++) {
+ if (hardware[i] == ' ' || hardware[i] == '\t') {
hardware[i] = '-';
+ }
}
- strcat( buffer, hardware );
}
- /* Append any CPU-specific information.
- */
-#ifdef USE_X86_ASM
- if ( _mesa_x86_cpu_features ) {
- strncat( buffer, " x86", 4 );
- }
-#endif
-#ifdef USE_MMX_ASM
- if ( cpu_has_mmx ) {
- strncat( buffer, "/MMX", 4 );
- }
-#endif
-#ifdef USE_3DNOW_ASM
- if ( cpu_has_3dnow ) {
- strncat( buffer, "/3DNow!", 7 );
- }
-#endif
-#ifdef USE_SSE_ASM
- if ( cpu_has_xmm ) {
- strncat( buffer, "/SSE", 4 );
- }
-#endif
+ (void) driGetRendererString(buffer, hardware, DRIVER_DATE, 0);
return (const GLubyte *) buffer;
}
case GL_VENDOR:
}
-/* Return uptodate buffer size information.
- */
-static void tdfxDDGetBufferSize( GLframebuffer *buffer,
- GLuint *width, GLuint *height )
+static void
+tdfxBeginQuery(GLcontext *ctx, struct gl_query_object *q)
{
- GET_CURRENT_CONTEXT(ctx);
tdfxContextPtr fxMesa = TDFX_CONTEXT(ctx);
- LOCK_HARDWARE( fxMesa );
- *width = fxMesa->width;
- *height = fxMesa->height;
- UNLOCK_HARDWARE( fxMesa );
-}
+ (void) q;
+ if (q->Target == GL_SAMPLES_PASSED_ARB) {
+ LOCK_HARDWARE(fxMesa);
+ fxMesa->Glide.grFinish();
+ fxMesa->Glide.grReset(GR_STATS_PIXELS);
+ UNLOCK_HARDWARE(fxMesa);
+ }
+}
-/*
- * Return the current value of the occlusion test flag and
- * reset the flag (hardware counters) to false.
- */
-static GLboolean get_occlusion_result( GLcontext *ctx )
+static void
+tdfxEndQuery(GLcontext *ctx, struct gl_query_object *q)
{
tdfxContextPtr fxMesa = TDFX_CONTEXT(ctx);
- GLboolean result;
-
- LOCK_HARDWARE( fxMesa );
- fxMesa->Glide.grFinish(); /* required to flush the FIFO - FB 21-01-2002 */
-
- if (ctx->Depth.OcclusionTest) {
- if (ctx->OcclusionResult) {
- result = GL_TRUE; /* result of software rendering */
- }
- else {
- FxI32 zfail, in;
- fxMesa->Glide.grGet(GR_STATS_PIXELS_DEPTHFUNC_FAIL, 4, &zfail);
- fxMesa->Glide.grGet(GR_STATS_PIXELS_IN, 4, &in);
- /* Geometry is occluded if there is no input (in == 0) */
- /* or if all pixels failed the depth test (zfail == in) */
- /* The < 1 is there because I have empirically seen cases where */
- /* zfail > in.... go figure. FB - 21-01-2002. */
- result = ((in - zfail) < 1 || in == 0) ? GL_FALSE : GL_TRUE;
- }
- }
- else {
- result = ctx->OcclusionResultSaved;
- }
+ FxI32 total_pixels;
+ FxI32 z_fail_pixels;
- /* reset results now */
- fxMesa->Glide.grReset(GR_STATS_PIXELS);
- ctx->OcclusionResult = GL_FALSE;
- ctx->OcclusionResultSaved = GL_FALSE;
-
- UNLOCK_HARDWARE( fxMesa );
-
- return result;
-}
+ if (q->Target == GL_SAMPLES_PASSED_ARB) {
+ LOCK_HARDWARE(fxMesa);
+ fxMesa->Glide.grFinish();
-/*
- * We're only implementing this function to handle the
- * GL_OCCLUSTION_TEST_RESULT_HP case. It's special because it
- * has a side-effect: resetting the occlustion result flag.
- */
-static GLboolean tdfxDDGetBooleanv( GLcontext *ctx, GLenum pname,
- GLboolean *result )
-{
- if ( pname == GL_OCCLUSION_TEST_RESULT_HP ) {
- *result = get_occlusion_result( ctx );
- return GL_TRUE;
- }
- return GL_FALSE;
-}
+ fxMesa->Glide.grGet(GR_STATS_PIXELS_DEPTHFUNC_FAIL, sizeof(FxI32),
+ &z_fail_pixels);
+ fxMesa->Glide.grGet(GR_STATS_PIXELS_IN, sizeof(FxI32), &total_pixels);
-static GLboolean tdfxDDGetDoublev( GLcontext *ctx, GLenum pname,
- GLdouble *result )
-{
- if ( pname == GL_OCCLUSION_TEST_RESULT_HP ) {
- *result = (GLdouble) get_occlusion_result( ctx );
- return GL_TRUE;
- }
- return GL_FALSE;
-}
+ q->Result = total_pixels - z_fail_pixels;
+
+ /* Apparently, people have seen z_fail_pixels > total_pixels under
+ * some conditions on some 3Dfx hardware. The occlusion query spec
+ * requires that we clamp to 0.
+ */
+ if (q->Result < 0) {
+ q->Result = 0;
+ }
-static GLboolean tdfxDDGetFloatv( GLcontext *ctx, GLenum pname,
- GLfloat *result )
-{
- if ( pname == GL_OCCLUSION_TEST_RESULT_HP ) {
- *result = (GLfloat) get_occlusion_result( ctx );
- return GL_TRUE;
- }
- return GL_FALSE;
-}
+ q->Ready = GL_TRUE;
-static GLboolean tdfxDDGetIntegerv( GLcontext *ctx, GLenum pname,
- GLint *result )
-{
- if ( pname == GL_OCCLUSION_TEST_RESULT_HP ) {
- *result = (GLint) get_occlusion_result( ctx );
- return GL_TRUE;
+ UNLOCK_HARDWARE(fxMesa);
}
- return GL_FALSE;
}
-
#define VISUAL_EQUALS_RGBA(vis, r, g, b, a) \
((vis->redBits == r) && \
(vis->greenBits == g) && \
fprintf( stderr, "tdfx: %s()\n", __FUNCTION__ );
}
- functions->GetString = tdfxDDGetString;
- functions->GetBufferSize = tdfxDDGetBufferSize;
- functions->ResizeBuffers = _swrast_alloc_buffers;
+ functions->GetString = tdfxDDGetString;
+ functions->BeginQuery = tdfxBeginQuery;
+ functions->EndQuery = tdfxEndQuery;
/* Accelerated paths
*/
{
functions->ReadPixels = tdfx_readpixels_R5G6B5;
}
-
- functions->GetBooleanv = tdfxDDGetBooleanv;
- functions->GetDoublev = tdfxDDGetDoublev;
- functions->GetFloatv = tdfxDDGetFloatv;
- functions->GetIntegerv = tdfxDDGetIntegerv;
}
projects / mesa.git / blobdiff