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-rw-r--r--src/mesa/drivers/dos/dmesa.c1722
1 files changed, 857 insertions, 865 deletions
diff --git a/src/mesa/drivers/dos/dmesa.c b/src/mesa/drivers/dos/dmesa.c
index 2d3b2e64951..41e0f4d8b31 100644
--- a/src/mesa/drivers/dos/dmesa.c
+++ b/src/mesa/drivers/dos/dmesa.c
@@ -101,7 +101,6 @@ struct dmesa_context {
};
-
#ifndef FX
/****************************************************************************
* Read/Write pixels
@@ -114,335 +113,334 @@ struct dmesa_context {
/****************************************************************************
* RGB[A]
***************************************************************************/
-static void write_rgba_span (const GLcontext *ctx, GLuint n, GLint x, GLint y,
- const GLubyte rgba[][4], const GLubyte mask[])
+static void
+write_rgba_span (const GLcontext *ctx, GLuint n, GLint x, GLint y,
+ const GLubyte rgba[][4], const GLubyte mask[])
{
- const DMesaContext dmesa = (DMesaContext)ctx;
- GLuint i, offset;
-
- offset = DSTRIDE * FLIP(y) + x;
- if (mask) {
- /* draw some pixels */
- for (i=0; i<n; i++, offset++) {
- if (mask[i]) {
- vl_putpixel(offset, vl_mixrgba(rgba[i]));
- }
- }
- } else {
- /* draw all pixels */
- for (i=0; i<n; i++, offset++) {
- vl_putpixel(offset, vl_mixrgba(rgba[i]));
- }
- }
+ const DMesaContext dmesa = (DMesaContext)ctx;
+ GLuint i, offset;
+
+ offset = DSTRIDE * FLIP(y) + x;
+ if (mask) {
+ /* draw some pixels */
+ for (i = 0; i < n; i++, offset++) {
+ if (mask[i]) {
+ vl_putpixel(offset, vl_mixrgba(rgba[i]));
+ }
+ }
+ } else {
+ /* draw all pixels */
+ for (i = 0; i < n; i++, offset++) {
+ vl_putpixel(offset, vl_mixrgba(rgba[i]));
+ }
+ }
}
-
-static void write_rgb_span (const GLcontext *ctx, GLuint n, GLint x, GLint y,
- const GLubyte rgb[][3], const GLubyte mask[])
+static void
+write_rgb_span (const GLcontext *ctx, GLuint n, GLint x, GLint y,
+ const GLubyte rgb[][3], const GLubyte mask[])
{
- const DMesaContext dmesa = (DMesaContext)ctx;
- GLuint i, offset;
-
- offset = DSTRIDE * FLIP(y) + x;
- if (mask) {
- /* draw some pixels */
- for (i=0; i<n; i++, offset++) {
- if (mask[i]) {
- vl_putpixel(offset, vl_mixrgb(rgb[i]));
- }
- }
- } else {
- /* draw all pixels */
- for (i=0; i<n; i++, offset++) {
- vl_putpixel(offset, vl_mixrgb(rgb[i]));
- }
- }
+ const DMesaContext dmesa = (DMesaContext)ctx;
+ GLuint i, offset;
+
+ offset = DSTRIDE * FLIP(y) + x;
+ if (mask) {
+ /* draw some pixels */
+ for (i = 0; i < n; i++, offset++) {
+ if (mask[i]) {
+ vl_putpixel(offset, vl_mixrgb(rgb[i]));
+ }
+ }
+ } else {
+ /* draw all pixels */
+ for (i = 0; i < n; i++, offset++) {
+ vl_putpixel(offset, vl_mixrgb(rgb[i]));
+ }
+ }
}
-
-static void write_mono_rgba_span (const GLcontext *ctx,
- GLuint n, GLint x, GLint y,
- const GLchan color[4], const GLubyte mask[])
+static void
+write_mono_rgba_span (const GLcontext *ctx,
+ GLuint n, GLint x, GLint y,
+ const GLchan color[4], const GLubyte mask[])
{
- const DMesaContext dmesa = (DMesaContext)ctx;
- GLuint i, offset, rgba = vl_mixrgba(color);
-
- offset = DSTRIDE * FLIP(y) + x;
- if (mask) {
- /* draw some pixels */
- for (i=0; i<n; i++, offset++) {
- if (mask[i]) {
- vl_putpixel(offset, rgba);
- }
- }
- } else {
- /* draw all pixels */
- for (i=0; i<n; i++, offset++) {
- vl_putpixel(offset, rgba);
- }
- }
+ const DMesaContext dmesa = (DMesaContext)ctx;
+ GLuint i, offset, rgba = vl_mixrgba(color);
+
+ offset = DSTRIDE * FLIP(y) + x;
+ if (mask) {
+ /* draw some pixels */
+ for (i = 0; i < n; i++, offset++) {
+ if (mask[i]) {
+ vl_putpixel(offset, rgba);
+ }
+ }
+ } else {
+ /* draw all pixels */
+ for (i = 0; i < n; i++, offset++) {
+ vl_putpixel(offset, rgba);
+ }
+ }
}
-
-static void read_rgba_span (const GLcontext *ctx, GLuint n, GLint x, GLint y,
- GLubyte rgba[][4])
+static void
+read_rgba_span (const GLcontext *ctx, GLuint n, GLint x, GLint y,
+ GLubyte rgba[][4])
{
- const DMesaContext dmesa = (DMesaContext)ctx;
- GLuint i, offset;
-
- offset = DSTRIDE * FLIP(y) + x;
- /* read all pixels */
- for (i=0; i<n; i++, offset++) {
- vl_getrgba(offset, rgba[i]);
- }
-}
+ const DMesaContext dmesa = (DMesaContext)ctx;
+ GLuint i, offset;
+ offset = DSTRIDE * FLIP(y) + x;
+ /* read all pixels */
+ for (i = 0; i < n; i++, offset++) {
+ vl_getrgba(offset, rgba[i]);
+ }
+}
-static void write_rgba_pixels (const GLcontext *ctx,
- GLuint n, const GLint x[], const GLint y[],
- const GLubyte rgba[][4], const GLubyte mask[])
+static void
+write_rgba_pixels (const GLcontext *ctx,
+ GLuint n, const GLint x[], const GLint y[],
+ const GLubyte rgba[][4], const GLubyte mask[])
{
- const DMesaContext dmesa = (DMesaContext)ctx;
- GLuint i, _w_ = DSTRIDE, _b_ = dmesa->buffer->height - 1;
-
- if (mask) {
- /* draw some pixels */
- for (i=0; i<n; i++) {
- if (mask[i]) {
- vl_putpixel(FLIP2(y[i])*_w_ + x[i], vl_mixrgba(rgba[i]));
- }
- }
- } else {
- /* draw all pixels */
- for (i=0; i<n; i++) {
- vl_putpixel(FLIP2(y[i])*_w_ + x[i], vl_mixrgba(rgba[i]));
- }
- }
+ const DMesaContext dmesa = (DMesaContext)ctx;
+ GLuint i, _w_ = DSTRIDE, _b_ = dmesa->buffer->height - 1;
+
+ if (mask) {
+ /* draw some pixels */
+ for (i = 0; i < n; i++) {
+ if (mask[i]) {
+ vl_putpixel(FLIP2(y[i])*_w_ + x[i], vl_mixrgba(rgba[i]));
+ }
+ }
+ } else {
+ /* draw all pixels */
+ for (i = 0; i < n; i++) {
+ vl_putpixel(FLIP2(y[i])*_w_ + x[i], vl_mixrgba(rgba[i]));
+ }
+ }
}
-
-static void write_mono_rgba_pixels (const GLcontext *ctx,
- GLuint n, const GLint x[], const GLint y[],
+static void
+write_mono_rgba_pixels (const GLcontext *ctx,
+ GLuint n, const GLint x[], const GLint y[],
const GLchan color[4], const GLubyte mask[])
{
- const DMesaContext dmesa = (DMesaContext)ctx;
- GLuint i, _w_ = DSTRIDE, _b_ = dmesa->buffer->height - 1, rgba = vl_mixrgba(color);
-
- if (mask) {
- /* draw some pixels */
- for (i=0; i<n; i++) {
- if (mask[i]) {
- vl_putpixel(FLIP2(y[i])*_w_ + x[i], rgba);
- }
- }
- } else {
- /* draw all pixels */
- for (i=0; i<n; i++) {
- vl_putpixel(FLIP2(y[i])*_w_ + x[i], rgba);
- }
- }
+ const DMesaContext dmesa = (DMesaContext)ctx;
+ GLuint i, _w_ = DSTRIDE, _b_ = dmesa->buffer->height - 1, rgba = vl_mixrgba(color);
+
+ if (mask) {
+ /* draw some pixels */
+ for (i = 0; i < n; i++) {
+ if (mask[i]) {
+ vl_putpixel(FLIP2(y[i])*_w_ + x[i], rgba);
+ }
+ }
+ } else {
+ /* draw all pixels */
+ for (i = 0; i < n; i++) {
+ vl_putpixel(FLIP2(y[i])*_w_ + x[i], rgba);
+ }
+ }
}
-
-static void read_rgba_pixels (const GLcontext *ctx,
- GLuint n, const GLint x[], const GLint y[],
- GLubyte rgba[][4], const GLubyte mask[])
+static void
+read_rgba_pixels (const GLcontext *ctx,
+ GLuint n, const GLint x[], const GLint y[],
+ GLubyte rgba[][4], const GLubyte mask[])
{
- const DMesaContext dmesa = (DMesaContext)ctx;
- GLuint i, _w_ = DSTRIDE, _b_ = dmesa->buffer->height - 1;
-
- if (mask) {
- /* read some pixels */
- for (i=0; i<n; i++) {
- if (mask[i]) {
- vl_getrgba(FLIP2(y[i])*_w_ + x[i], rgba[i]);
- }
- }
- } else {
- /* read all pixels */
- for (i=0; i<n; i++) {
- vl_getrgba(FLIP2(y[i])*_w_ + x[i], rgba[i]);
- }
- }
+ const DMesaContext dmesa = (DMesaContext)ctx;
+ GLuint i, _w_ = DSTRIDE, _b_ = dmesa->buffer->height - 1;
+
+ if (mask) {
+ /* read some pixels */
+ for (i = 0; i < n; i++) {
+ if (mask[i]) {
+ vl_getrgba(FLIP2(y[i])*_w_ + x[i], rgba[i]);
+ }
+ }
+ } else {
+ /* read all pixels */
+ for (i = 0; i < n; i++) {
+ vl_getrgba(FLIP2(y[i])*_w_ + x[i], rgba[i]);
+ }
+ }
}
-
/****************************************************************************
* Index
***************************************************************************/
-static void write_index_span (const GLcontext *ctx, GLuint n, GLint x, GLint y,
- const GLuint index[], const GLubyte mask[])
+static void
+write_index_span (const GLcontext *ctx, GLuint n, GLint x, GLint y,
+ const GLuint index[], const GLubyte mask[])
{
- const DMesaContext dmesa = (DMesaContext)ctx;
- GLuint i, offset;
-
- offset = DSTRIDE * FLIP(y) + x;
- if (mask) {
- /* draw some pixels */
- for (i=0; i<n; i++, offset++) {
- if (mask[i]) {
- vl_putpixel(offset, index[i]);
- }
- }
- } else {
- /* draw all pixels */
- for (i=0; i<n; i++, offset++) {
- vl_putpixel(offset, index[i]);
- }
- }
+ const DMesaContext dmesa = (DMesaContext)ctx;
+ GLuint i, offset;
+
+ offset = DSTRIDE * FLIP(y) + x;
+ if (mask) {
+ /* draw some pixels */
+ for (i = 0; i < n; i++, offset++) {
+ if (mask[i]) {
+ vl_putpixel(offset, index[i]);
+ }
+ }
+ } else {
+ /* draw all pixels */
+ for (i = 0; i < n; i++, offset++) {
+ vl_putpixel(offset, index[i]);
+ }
+ }
}
-
-static void write_index8_span (const GLcontext *ctx, GLuint n, GLint x, GLint y,
- const GLubyte index[], const GLubyte mask[])
+static void
+write_index8_span (const GLcontext *ctx, GLuint n, GLint x, GLint y,
+ const GLubyte index[], const GLubyte mask[])
{
- const DMesaContext dmesa = (DMesaContext)ctx;
- GLuint i, offset;
-
- offset = DSTRIDE * FLIP(y) + x;
- if (mask) {
- /* draw some pixels */
- for (i=0; i<n; i++, offset++) {
- if (mask[i]) {
- vl_putpixel(offset, index[i]);
- }
- }
- } else {
- /* draw all pixels */
- for (i=0; i<n; i++, offset++) {
- vl_putpixel(offset, index[i]);
- }
- }
+ const DMesaContext dmesa = (DMesaContext)ctx;
+ GLuint i, offset;
+
+ offset = DSTRIDE * FLIP(y) + x;
+ if (mask) {
+ /* draw some pixels */
+ for (i = 0; i < n; i++, offset++) {
+ if (mask[i]) {
+ vl_putpixel(offset, index[i]);
+ }
+ }
+ } else {
+ /* draw all pixels */
+ for (i = 0; i < n; i++, offset++) {
+ vl_putpixel(offset, index[i]);
+ }
+ }
}
-
-static void write_mono_index_span (const GLcontext *ctx,
- GLuint n, GLint x, GLint y,
- GLuint colorIndex, const GLubyte mask[])
+static void
+write_mono_index_span (const GLcontext *ctx,
+ GLuint n, GLint x, GLint y,
+ GLuint colorIndex, const GLubyte mask[])
{
- const DMesaContext dmesa = (DMesaContext)ctx;
- GLuint i, offset;
-
- offset = DSTRIDE * FLIP(y) + x;
- if (mask) {
- /* draw some pixels */
- for (i=0; i<n; i++, offset++) {
- if (mask[i]) {
- vl_putpixel(offset, colorIndex);
- }
- }
- } else {
- /* draw all pixels */
- for (i=0; i<n; i++, offset++) {
- vl_putpixel(offset, colorIndex);
- }
- }
+ const DMesaContext dmesa = (DMesaContext)ctx;
+ GLuint i, offset;
+
+ offset = DSTRIDE * FLIP(y) + x;
+ if (mask) {
+ /* draw some pixels */
+ for (i = 0; i < n; i++, offset++) {
+ if (mask[i]) {
+ vl_putpixel(offset, colorIndex);
+ }
+ }
+ } else {
+ /* draw all pixels */
+ for (i = 0; i < n; i++, offset++) {
+ vl_putpixel(offset, colorIndex);
+ }
+ }
}
-
-static void read_index_span (const GLcontext *ctx, GLuint n, GLint x, GLint y,
- GLuint index[])
+static void
+read_index_span (const GLcontext *ctx, GLuint n, GLint x, GLint y,
+ GLuint index[])
{
- const DMesaContext dmesa = (DMesaContext)ctx;
- GLuint i, offset;
-
- offset = DSTRIDE * FLIP(y) + x;
- /* read all pixels */
- for (i=0; i<n; i++, offset++) {
- index[i] = vl_getpixel(offset);
- }
-}
+ const DMesaContext dmesa = (DMesaContext)ctx;
+ GLuint i, offset;
+ offset = DSTRIDE * FLIP(y) + x;
+ /* read all pixels */
+ for (i = 0; i < n; i++, offset++) {
+ index[i] = vl_getpixel(offset);
+ }
+}
-static void write_index_pixels (const GLcontext *ctx,
- GLuint n, const GLint x[], const GLint y[],
- const GLuint index[], const GLubyte mask[])
+static void
+write_index_pixels (const GLcontext *ctx,
+ GLuint n, const GLint x[], const GLint y[],
+ const GLuint index[], const GLubyte mask[])
{
- const DMesaContext dmesa = (DMesaContext)ctx;
- GLuint i, _w_ = DSTRIDE, _b_ = dmesa->buffer->height - 1;
-
- if (mask) {
- /* draw some pixels */
- for (i=0; i<n; i++) {
- if (mask[i]) {
- vl_putpixel(FLIP2(y[i])*_w_ + x[i], index[i]);
- }
- }
- } else {
- /* draw all pixels */
- for (i=0; i<n; i++) {
- vl_putpixel(FLIP2(y[i])*_w_ + x[i], index[i]);
- }
- }
+ const DMesaContext dmesa = (DMesaContext)ctx;
+ GLuint i, _w_ = DSTRIDE, _b_ = dmesa->buffer->height - 1;
+
+ if (mask) {
+ /* draw some pixels */
+ for (i = 0; i < n; i++) {
+ if (mask[i]) {
+ vl_putpixel(FLIP2(y[i])*_w_ + x[i], index[i]);
+ }
+ }
+ } else {
+ /* draw all pixels */
+ for (i = 0; i < n; i++) {
+ vl_putpixel(FLIP2(y[i])*_w_ + x[i], index[i]);
+ }
+ }
}
-
-static void write_mono_index_pixels (const GLcontext *ctx,
- GLuint n, const GLint x[], const GLint y[],
- GLuint colorIndex, const GLubyte mask[])
+static void
+write_mono_index_pixels (const GLcontext *ctx,
+ GLuint n, const GLint x[], const GLint y[],
+ GLuint colorIndex, const GLubyte mask[])
{
- const DMesaContext dmesa = (DMesaContext)ctx;
- GLuint i, _w_ = DSTRIDE, _b_ = dmesa->buffer->height - 1;
-
- if (mask) {
- /* draw some pixels */
- for (i=0; i<n; i++) {
- if (mask[i]) {
- vl_putpixel(FLIP2(y[i])*_w_ + x[i], colorIndex);
- }
- }
- } else {
- /* draw all pixels */
- for (i=0; i<n; i++) {
- vl_putpixel(FLIP2(y[i])*_w_ + x[i], colorIndex);
- }
- }
+ const DMesaContext dmesa = (DMesaContext)ctx;
+ GLuint i, _w_ = DSTRIDE, _b_ = dmesa->buffer->height - 1;
+
+ if (mask) {
+ /* draw some pixels */
+ for (i = 0; i < n; i++) {
+ if (mask[i]) {
+ vl_putpixel(FLIP2(y[i])*_w_ + x[i], colorIndex);
+ }
+ }
+ } else {
+ /* draw all pixels */
+ for (i = 0; i < n; i++) {
+ vl_putpixel(FLIP2(y[i])*_w_ + x[i], colorIndex);
+ }
+ }
}
-
-static void read_index_pixels (const GLcontext *ctx,
- GLuint n, const GLint x[], const GLint y[],
+static void
+read_index_pixels (const GLcontext *ctx,
+ GLuint n, const GLint x[], const GLint y[],
GLuint index[], const GLubyte mask[])
{
- const DMesaContext dmesa = (DMesaContext)ctx;
- GLuint i, _w_ = DSTRIDE, _b_ = dmesa->buffer->height - 1;
-
- if (mask) {
- /* read some pixels */
- for (i=0; i<n; i++) {
- if (mask[i]) {
- index[i] = vl_getpixel(FLIP2(y[i])*_w_ + x[i]);
- }
- }
- } else {
- /* read all pixels */
- for (i=0; i<n; i++) {
- index[i] = vl_getpixel(FLIP2(y[i])*_w_ + x[i]);
- }
- }
+ const DMesaContext dmesa = (DMesaContext)ctx;
+ GLuint i, _w_ = DSTRIDE, _b_ = dmesa->buffer->height - 1;
+
+ if (mask) {
+ /* read some pixels */
+ for (i = 0; i < n; i++) {
+ if (mask[i]) {
+ index[i] = vl_getpixel(FLIP2(y[i])*_w_ + x[i]);
+ }
+ }
+ } else {
+ /* read all pixels */
+ for (i = 0; i < n; i++) {
+ index[i] = vl_getpixel(FLIP2(y[i])*_w_ + x[i]);
+ }
+ }
}
-
/****************************************************************************
* Z-buffer
***************************************************************************/
-
/****************************************************************************
* Optimized triangle rendering
***************************************************************************/
@@ -453,21 +451,20 @@ static void read_index_pixels (const GLcontext *ctx,
#define NAME tri_rgb_flat
#define SETUP_CODE \
- const DMesaContext dmesa = (DMesaContext)ctx; \
- GLuint _b_ = dmesa->buffer->height - 1; \
- GLuint _w_ = dmesa->buffer->width; \
- GLuint rgb = vl_mixrgb(v2->color);
+ const DMesaContext dmesa = (DMesaContext)ctx;\
+ GLuint _b_ = dmesa->buffer->height - 1; \
+ GLuint _w_ = dmesa->buffer->width; \
+ GLuint rgb = vl_mixrgb(v2->color);
#define RENDER_SPAN(span) \
- GLuint i, offset = FLIP2(span.y)*_w_ + span.x; \
- for (i = 0; i < span.end; i++, offset++) { \
- vl_putpixel(offset, rgb); \
- }
+ GLuint i, offset = FLIP2(span.y)*_w_ + span.x;\
+ for (i = 0; i < span.end; i++, offset++) { \
+ vl_putpixel(offset, rgb); \
+ }
#include "swrast/s_tritemp.h"
-
/*
* Z-less flat triangle.
*/
@@ -477,26 +474,25 @@ static void read_index_pixels (const GLcontext *ctx,
#define DEPTH_TYPE DEFAULT_SOFTWARE_DEPTH_TYPE
#define SETUP_CODE \
- const DMesaContext dmesa = (DMesaContext)ctx; \
- GLuint _b_ = dmesa->buffer->height - 1; \
- GLuint _w_ = dmesa->buffer->width; \
- GLuint rgb = vl_mixrgb(v2->color);
+ const DMesaContext dmesa = (DMesaContext)ctx; \
+ GLuint _b_ = dmesa->buffer->height - 1; \
+ GLuint _w_ = dmesa->buffer->width; \
+ GLuint rgb = vl_mixrgb(v2->color);
#define RENDER_SPAN(span) \
- GLuint i, offset = FLIP2(span.y)*_w_ + span.x; \
- for (i = 0; i < span.end; i++, offset++) { \
- const DEPTH_TYPE z = FixedToDepth(span.z); \
- if (z < zRow[i]) { \
- vl_putpixel(offset, rgb); \
- zRow[i] = z; \
- } \
- span.z += span.zStep; \
- }
+ GLuint i, offset = FLIP2(span.y)*_w_ + span.x;\
+ for (i = 0; i < span.end; i++, offset++) { \
+ const DEPTH_TYPE z = FixedToDepth(span.z);\
+ if (z < zRow[i]) { \
+ vl_putpixel(offset, rgb); \
+ zRow[i] = z; \
+ } \
+ span.z += span.zStep; \
+ }
#include "swrast/s_tritemp.h"
-
/*
* NON-depth-buffered iterated triangle.
*/
@@ -505,23 +501,22 @@ static void read_index_pixels (const GLcontext *ctx,
#define INTERP_RGB 1
#define SETUP_CODE \
- const DMesaContext dmesa = (DMesaContext)ctx; \
- GLuint _b_ = dmesa->buffer->height - 1; \
- GLuint _w_ = dmesa->buffer->width;
+ const DMesaContext dmesa = (DMesaContext)ctx;\
+ GLuint _b_ = dmesa->buffer->height - 1; \
+ GLuint _w_ = dmesa->buffer->width;
#define RENDER_SPAN(span) \
- GLuint i, offset = FLIP2(span.y)*_w_ + span.x; \
- for (i = 0; i < span.end; i++, offset++) { \
- vl_putpixel(offset, vl_mixfix(span.red, span.green, span.blue)); \
- span.red += span.redStep; \
- span.green += span.greenStep; \
- span.blue += span.blueStep; \
- }
+ GLuint i, offset = FLIP2(span.y)*_w_ + span.x; \
+ for (i = 0; i < span.end; i++, offset++) { \
+ vl_putpixel(offset, vl_mixfix(span.red, span.green, span.blue)); \
+ span.red += span.redStep; \
+ span.green += span.greenStep; \
+ span.blue += span.blueStep; \
+ }
#include "swrast/s_tritemp.h"
-
/*
* Z-less iterated triangle.
*/
@@ -532,75 +527,75 @@ static void read_index_pixels (const GLcontext *ctx,
#define INTERP_RGB 1
#define SETUP_CODE \
- const DMesaContext dmesa = (DMesaContext)ctx; \
- GLuint _b_ = dmesa->buffer->height - 1; \
- GLuint _w_ = dmesa->buffer->width;
+ const DMesaContext dmesa = (DMesaContext)ctx;\
+ GLuint _b_ = dmesa->buffer->height - 1; \
+ GLuint _w_ = dmesa->buffer->width;
#define RENDER_SPAN(span) \
- GLuint i, offset = FLIP2(span.y)*_w_ + span.x; \
- for (i = 0; i < span.end; i++, offset++) { \
- const DEPTH_TYPE z = FixedToDepth(span.z); \
- if (z < zRow[i]) { \
- vl_putpixel(offset, vl_mixfix(span.red, span.green, span.blue));\
- zRow[i] = z; \
- } \
- span.red += span.redStep; \
- span.green += span.greenStep; \
- span.blue += span.blueStep; \
- span.z += span.zStep; \
- }
+ GLuint i, offset = FLIP2(span.y)*_w_ + span.x; \
+ for (i = 0; i < span.end; i++, offset++) { \
+ const DEPTH_TYPE z = FixedToDepth(span.z); \
+ if (z < zRow[i]) { \
+ vl_putpixel(offset, vl_mixfix(span.red, span.green, span.blue));\
+ zRow[i] = z; \
+ } \
+ span.red += span.redStep; \
+ span.green += span.greenStep; \
+ span.blue += span.blueStep; \
+ span.z += span.zStep; \
+ }
#include "swrast/s_tritemp.h"
-
/*
* Analyze context state to see if we can provide a fast triangle function
* Otherwise, return NULL.
*/
-static swrast_tri_func dmesa_choose_tri_function (GLcontext *ctx)
+static swrast_tri_func
+dmesa_choose_tri_function (GLcontext *ctx)
{
- const SWcontext *swrast = SWRAST_CONTEXT(ctx);
-
- if ((ctx->RenderMode != GL_RENDER)
- || (ctx->Polygon.SmoothFlag)
- || (ctx->Polygon.StippleFlag)
- || (ctx->Texture._EnabledUnits)
- || (swrast->_RasterMask & MULTI_DRAW_BIT)
- || (ctx->Polygon.CullFlag && ctx->Polygon.CullFaceMode == GL_FRONT_AND_BACK)) {
- return (swrast_tri_func)NULL;
- }
-
- if (swrast->_RasterMask==DEPTH_BIT
- && ctx->Depth.Func==GL_LESS
- && ctx->Depth.Mask==GL_TRUE
- && ctx->Visual.depthBits == DEFAULT_SOFTWARE_DEPTH_BITS) {
- return (ctx->Light.ShadeModel==GL_SMOOTH) ? tri_rgb_iter_zless : tri_rgb_flat_zless;
- }
-
- if (swrast->_RasterMask==0) { /* no depth test */
- return (ctx->Light.ShadeModel==GL_SMOOTH) ? tri_rgb_iter : tri_rgb_flat;
- }
-
- return (swrast_tri_func)NULL;
-}
+ const SWcontext *swrast = SWRAST_CONTEXT(ctx);
+
+ if ((ctx->RenderMode != GL_RENDER)
+ || (ctx->Polygon.SmoothFlag)
+ || (ctx->Polygon.StippleFlag)
+ || (ctx->Texture._EnabledUnits)
+ || (swrast->_RasterMask & MULTI_DRAW_BIT)
+ || (ctx->Polygon.CullFlag && ctx->Polygon.CullFaceMode == GL_FRONT_AND_BACK)) {
+ return (swrast_tri_func)NULL;
+ }
+
+ if (swrast->_RasterMask==DEPTH_BIT
+ && ctx->Depth.Func==GL_LESS
+ && ctx->Depth.Mask==GL_TRUE
+ && ctx->Visual.depthBits == DEFAULT_SOFTWARE_DEPTH_BITS) {
+ return (ctx->Light.ShadeModel==GL_SMOOTH) ? tri_rgb_iter_zless : tri_rgb_flat_zless;
+ }
+
+ if (swrast->_RasterMask==0) { /* no depth test */
+ return (ctx->Light.ShadeModel==GL_SMOOTH) ? tri_rgb_iter : tri_rgb_flat;
+ }
+ return (swrast_tri_func)NULL;
+}
/* Override for the swrast triangle-selection function. Try to use one
* of our internal triangle functions, otherwise fall back to the
* standard swrast functions.
*/
-static void dmesa_choose_tri (GLcontext *ctx)
+static void
+dmesa_choose_tri (GLcontext *ctx)
{
- SWcontext *swrast = SWRAST_CONTEXT(ctx);
+ SWcontext *swrast = SWRAST_CONTEXT(ctx);
- if (!(swrast->Triangle=dmesa_choose_tri_function(ctx)))
- _swrast_choose_triangle(ctx);
+ if (!(swrast->Triangle=dmesa_choose_tri_function(ctx))) {
+ _swrast_choose_triangle(ctx);
+ }
}
-
/****************************************************************************
* Optimized line rendering
***************************************************************************/
@@ -614,17 +609,16 @@ static void dmesa_choose_tri (GLcontext *ctx)
#define CLIP_HACK 1
#define SETUP_CODE \
- const DMesaContext dmesa = (DMesaContext)ctx; \
- GLuint _b_ = dmesa->buffer->height - 1; \
- GLuint _w_ = dmesa->buffer->width; \
- GLuint rgb = vl_mixrgb(vert1->color);
+ const DMesaContext dmesa = (DMesaContext)ctx;\
+ GLuint _b_ = dmesa->buffer->height - 1; \
+ GLuint _w_ = dmesa->buffer->width; \
+ GLuint rgb = vl_mixrgb(vert1->color);
#define PLOT(X,Y) vl_putpixel(FLIP2(Y) * _w_ + X, rgb);
#include "swrast/s_linetemp.h"
-
/*
* Z-less flat line.
*/
@@ -636,88 +630,86 @@ static void dmesa_choose_tri (GLcontext *ctx)
#define CLIP_HACK 1
#define SETUP_CODE \
- const DMesaContext dmesa = (DMesaContext)ctx; \
- GLuint _b_ = dmesa->buffer->height - 1; \
- GLuint _w_ = dmesa->buffer->width; \
- GLuint rgb = vl_mixrgb(vert1->color);
+ const DMesaContext dmesa = (DMesaContext)ctx;\
+ GLuint _b_ = dmesa->buffer->height - 1; \
+ GLuint _w_ = dmesa->buffer->width; \
+ GLuint rgb = vl_mixrgb(vert1->color);
#define PLOT(X,Y) \
- if (Z < *zPtr) { \
- *zPtr = Z; \
- vl_putpixel(FLIP2(Y) * _w_ + X, rgb); \
- }
+ if (Z < *zPtr) { \
+ *zPtr = Z; \
+ vl_putpixel(FLIP2(Y) * _w_ + X, rgb); \
+ }
#include "swrast/s_linetemp.h"
-
/*
* NON-depth-buffered iterated line.
*/
#define line_rgb_iter NULL
-
/*
* Z-less iterated line.
*/
#define line_rgb_iter_zless NULL
-
/*
* Analyze context state to see if we can provide a fast line function
* Otherwise, return NULL.
*/
-static swrast_line_func dmesa_choose_line_function (GLcontext *ctx)
+static swrast_line_func
+dmesa_choose_line_function (GLcontext *ctx)
{
- const SWcontext *swrast = SWRAST_CONTEXT(ctx);
-
- if ((ctx->RenderMode != GL_RENDER)
- || (ctx->Line.SmoothFlag)
- || (ctx->Texture._EnabledUnits)
- || (ctx->Line.StippleFlag)
- || (swrast->_RasterMask & MULTI_DRAW_BIT)
- || (ctx->Line.Width!=1.0F)) {
- return (swrast_line_func)NULL;
- }
-
- if (swrast->_RasterMask==DEPTH_BIT
- && ctx->Depth.Func==GL_LESS
- && ctx->Depth.Mask==GL_TRUE
- && ctx->Visual.depthBits == DEFAULT_SOFTWARE_DEPTH_BITS) {
- return (ctx->Light.ShadeModel==GL_SMOOTH) ? line_rgb_iter_zless : line_rgb_flat_zless;
- }
-
- if (swrast->_RasterMask==0) { /* no depth test */
- return (ctx->Light.ShadeModel==GL_SMOOTH) ? line_rgb_iter : line_rgb_flat;
- }
-
- return (swrast_line_func)NULL;
-}
+ const SWcontext *swrast = SWRAST_CONTEXT(ctx);
+
+ if ((ctx->RenderMode != GL_RENDER)
+ || (ctx->Line.SmoothFlag)
+ || (ctx->Texture._EnabledUnits)
+ || (ctx->Line.StippleFlag)
+ || (swrast->_RasterMask & MULTI_DRAW_BIT)
+ || (ctx->Line.Width!=1.0F)) {
+ return (swrast_line_func)NULL;
+ }
+
+ if (swrast->_RasterMask==DEPTH_BIT
+ && ctx->Depth.Func==GL_LESS
+ && ctx->Depth.Mask==GL_TRUE
+ && ctx->Visual.depthBits == DEFAULT_SOFTWARE_DEPTH_BITS) {
+ return (ctx->Light.ShadeModel==GL_SMOOTH) ? line_rgb_iter_zless : line_rgb_flat_zless;
+ }
+ if (swrast->_RasterMask==0) { /* no depth test */
+ return (ctx->Light.ShadeModel==GL_SMOOTH) ? line_rgb_iter : line_rgb_flat;
+ }
+
+ return (swrast_line_func)NULL;
+}
/* Override for the swrast line-selection function. Try to use one
* of our internal line functions, otherwise fall back to the
* standard swrast functions.
*/
-static void dmesa_choose_line (GLcontext *ctx)
+static void
+dmesa_choose_line (GLcontext *ctx)
{
- SWcontext *swrast = SWRAST_CONTEXT(ctx);
+ SWcontext *swrast = SWRAST_CONTEXT(ctx);
- if (!(swrast->Line=dmesa_choose_line_function(ctx)))
- _swrast_choose_line(ctx);
+ if (!(swrast->Line=dmesa_choose_line_function(ctx))) {
+ _swrast_choose_line(ctx);
+ }
}
-
/****************************************************************************
* Miscellaneous device driver funcs
***************************************************************************/
static const struct gl_texture_format *
-choose_tex_format( GLcontext *ctx, GLint internalFormat,
- GLenum format, GLenum type )
+choose_tex_format (GLcontext *ctx, GLint internalFormat,
+ GLenum format, GLenum type)
{
switch (internalFormat) {
case GL_COMPRESSED_RGB_ARB:
@@ -730,134 +722,135 @@ choose_tex_format( GLcontext *ctx, GLint internalFormat,
}
-
-static void clear_index (GLcontext *ctx, GLuint index)
+static void
+clear_index (GLcontext *ctx, GLuint index)
{
- ((DMesaContext)ctx)->ClearIndex = index;
+ ((DMesaContext)ctx)->ClearIndex = index;
}
-static void clear_color (GLcontext *ctx, const GLfloat color[4])
+
+static void
+clear_color (GLcontext *ctx, const GLfloat color[4])
{
- GLubyte col[4];
- CLAMPED_FLOAT_TO_UBYTE(col[0], color[0]);
- CLAMPED_FLOAT_TO_UBYTE(col[1], color[1]);
- CLAMPED_FLOAT_TO_UBYTE(col[2], color[2]);
- CLAMPED_FLOAT_TO_UBYTE(col[3], color[3]);
- ((DMesaContext)ctx)->ClearColor = vl_mixrgba(col);
+ GLubyte col[4];
+ CLAMPED_FLOAT_TO_UBYTE(col[0], color[0]);
+ CLAMPED_FLOAT_TO_UBYTE(col[1], color[1]);
+ CLAMPED_FLOAT_TO_UBYTE(col[2], color[2]);
+ CLAMPED_FLOAT_TO_UBYTE(col[3], color[3]);
+ ((DMesaContext)ctx)->ClearColor = vl_mixrgba(col);
}
-
-static void clear (GLcontext *ctx, GLbitfield mask, GLboolean all,
- GLint x, GLint y, GLint width, GLint height)
+static void
+clear (GLcontext *ctx, GLbitfield mask, GLboolean all,
+ GLint x, GLint y, GLint width, GLint height)
{
- const DMesaContext c = (DMesaContext)ctx;
- const GLuint *colorMask = (GLuint *)&ctx->Color.ColorMask;
-
-/*
- * Clear the specified region of the buffers indicated by 'mask'
- * using the clear color or index as specified by one of the two
- * functions above.
- * If all==GL_TRUE, clear whole buffer, else just clear region defined
- * by x,y,width,height
- */
-
- /* we can't handle color or index masking */
- if ((*colorMask == 0xffffffff) && (ctx->Color.IndexMask == 0xffffffff)) {
- if (mask & DD_BACK_LEFT_BIT) {
- int color = ((GLvisual *)(c->visual))->rgbMode ? c->ClearColor : c->ClearIndex;
-
- if (all) {
- vl_clear(color);
- } else {
- vl_rect(x, c->buffer->height - y - height, width, height, color);
- }
-
- mask &= ~DD_BACK_LEFT_BIT;
- }
- }
+ const DMesaContext c = (DMesaContext)ctx;
+ const GLuint *colorMask = (GLuint *)&ctx->Color.ColorMask;
+
+ /*
+ * Clear the specified region of the buffers indicated by 'mask'
+ * using the clear color or index as specified by one of the two
+ * functions above.
+ * If all==GL_TRUE, clear whole buffer, else just clear region defined
+ * by x,y,width,height
+ */
+
+ /* we can't handle color or index masking */
+ if ((*colorMask == 0xffffffff) && (ctx->Color.IndexMask == 0xffffffff)) {
+ if (mask & DD_BACK_LEFT_BIT) {
+ int color = ((GLvisual *)(c->visual))->rgbMode ? c->ClearColor : c->ClearIndex;
+
+ if (all) {
+ vl_clear(color);
+ } else {
+ vl_rect(x, c->buffer->height - y - height, width, height, color);
+ }
+
+ mask &= ~DD_BACK_LEFT_BIT;
+ }
+ }
- if (mask) {
- _swrast_Clear(ctx, mask, all, x, y, width, height);
- }
+ if (mask) {
+ _swrast_Clear(ctx, mask, all, x, y, width, height);
+ }
}
-
/*
* This function is called to specify which buffer to read and write
* for software rasterization (swrast) fallbacks. This doesn't necessarily
* correspond to glDrawBuffer() or glReadBuffer() calls.
*/
-static void set_buffer (GLcontext *ctx, GLframebuffer *colorBuffer, GLuint bufferBit)
+static void
+set_buffer (GLcontext *ctx, GLframebuffer *colorBuffer, GLuint bufferBit)
{
- /*
- * XXX todo - examine bufferBit and set read/write pointers
- */
- /* Normally, we would have
- * ctx->Driver.ReadBuffer == set_read_buffer
- * ctx->Driver.DrawBuffer == set_draw_buffer
- * and make sure set_draw_buffer calls _swrast_DrawBuffer,
- * which in turn will call this routine via dd->SetBuffer.
- */
+ /*
+ * XXX todo - examine bufferBit and set read/write pointers
+ */
+ /* Normally, we would have
+ * ctx->Driver.ReadBuffer == set_read_buffer
+ * ctx->Driver.DrawBuffer == set_draw_buffer
+ * and make sure set_draw_buffer calls _swrast_DrawBuffer,
+ * which in turn will call this routine via dd->SetBuffer.
+ */
}
-
/*
* Return the width and height of the current buffer.
* If anything special has to been done when the buffer/window is
* resized, do it now.
*/
-static void get_buffer_size (GLframebuffer *buffer, GLuint *width, GLuint *height)
+static void
+get_buffer_size (GLframebuffer *buffer, GLuint *width, GLuint *height)
{
- DMesaBuffer b = (DMesaBuffer)buffer;
+ DMesaBuffer b = (DMesaBuffer)buffer;
- *width = b->width;
- *height = b->height;
+ *width = b->width;
+ *height = b->height;
}
-
-static const GLubyte* get_string (GLcontext *ctx, GLenum name)
+static const GLubyte *
+get_string (GLcontext *ctx, GLenum name)
{
- switch (name) {
- case GL_RENDERER:
- return (const GLubyte *)"Mesa DJGPP";
- default:
- return NULL;
- }
+ switch (name) {
+ case GL_RENDERER:
+ return (const GLubyte *)"Mesa DJGPP";
+ default:
+ return NULL;
+ }
}
-
-static void finish (GLcontext *ctx)
+static void
+finish (GLcontext *ctx)
{
- /*
- * XXX todo - OPTIONAL FUNCTION: implements glFinish if possible
- */
+ /*
+ * XXX todo - OPTIONAL FUNCTION: implements glFinish if possible
+ */
}
-
-static void flush (GLcontext *ctx)
+static void
+flush (GLcontext *ctx)
{
- /*
- * XXX todo - OPTIONAL FUNCTION: implements glFlush if possible
- */
+ /*
+ * XXX todo - OPTIONAL FUNCTION: implements glFlush if possible
+ */
}
-
/****************************************************************************
* State
***************************************************************************/
-#define DMESA_NEW_LINE (_NEW_LINE | \
- _NEW_TEXTURE | \
- _NEW_LIGHT | \
- _NEW_DEPTH | \
- _NEW_RENDERMODE | \
- _SWRAST_NEW_RASTERMASK)
+#define DMESA_NEW_LINE (_NEW_LINE | \
+ _NEW_TEXTURE | \
+ _NEW_LIGHT | \
+ _NEW_DEPTH | \
+ _NEW_RENDERMODE | \
+ _SWRAST_NEW_RASTERMASK)
#define DMESA_NEW_TRIANGLE (_NEW_POLYGON | \
_NEW_TEXTURE | \
@@ -869,88 +862,88 @@ static void flush (GLcontext *ctx)
/* Extend the software rasterizer with our line and triangle
* functions.
*/
-static void dmesa_register_swrast_functions (GLcontext *ctx)
+static void
+dmesa_register_swrast_functions (GLcontext *ctx)
{
- SWcontext *swrast = SWRAST_CONTEXT(ctx);
+ SWcontext *swrast = SWRAST_CONTEXT(ctx);
- swrast->choose_line = dmesa_choose_line;
- swrast->choose_triangle = dmesa_choose_tri;
+ swrast->choose_line = dmesa_choose_line;
+ swrast->choose_triangle = dmesa_choose_tri;
- swrast->invalidate_line |= DMESA_NEW_LINE;
- swrast->invalidate_triangle |= DMESA_NEW_TRIANGLE;
+ swrast->invalidate_line |= DMESA_NEW_LINE;
+ swrast->invalidate_triangle |= DMESA_NEW_TRIANGLE;
}
-
-static void dmesa_update_state (GLcontext *ctx, GLuint new_state)
+static void
+dmesa_update_state (GLcontext *ctx, GLuint new_state)
{
- /* Propagate statechange information to swrast and swrast_setup
- * modules. The DMesa driver has no internal GL-dependent state.
- */
- _swrast_InvalidateState( ctx, new_state );
- _ac_InvalidateState( ctx, new_state );
- _tnl_InvalidateState( ctx, new_state );
- _swsetup_InvalidateState( ctx, new_state );
+ /* Propagate statechange information to swrast and swrast_setup
+ * modules. The DMesa driver has no internal GL-dependent state.
+ */
+ _swrast_InvalidateState( ctx, new_state );
+ _ac_InvalidateState( ctx, new_state );
+ _tnl_InvalidateState( ctx, new_state );
+ _swsetup_InvalidateState( ctx, new_state );
}
-
/* Initialize the device driver function table with the functions
* we implement in this driver.
*/
-static void dmesa_init_driver_functions (DMesaVisual visual,
- struct dd_function_table *driver)
+static void
+dmesa_init_driver_functions (DMesaVisual visual,
+ struct dd_function_table *driver)
{
- driver->UpdateState = dmesa_update_state;
- driver->GetString = get_string;
- driver->GetBufferSize = get_buffer_size;
- driver->Flush = flush;
- driver->Finish = finish;
- driver->Clear = clear;
- driver->ClearColor = clear_color;
- driver->ClearIndex = clear_index;
+ driver->UpdateState = dmesa_update_state;
+ driver->GetString = get_string;
+ driver->GetBufferSize = get_buffer_size;
+ driver->Flush = flush;
+ driver->Finish = finish;
+ driver->Clear = clear;
+ driver->ClearColor = clear_color;
+ driver->ClearIndex = clear_index;
#if SWTC
- driver->ChooseTextureFormat = choose_tex_format;
+ driver->ChooseTextureFormat = choose_tex_format;
#endif
}
-
/* Setup pointers and other driver state that is constant for the life
* of a context.
*/
-static void dmesa_init_pointers (GLcontext *ctx)
+static void
+dmesa_init_pointers (GLcontext *ctx)
{
- struct swrast_device_driver *dd = _swrast_GetDeviceDriverReference(ctx);
-
- dd->SetBuffer = set_buffer;
-
- /* The span functions should be in `dmesa_update_state', but I'm
- * pretty sure they will never change during the life of the Visual
- */
-
- /* Index span/pixel functions */
- dd->WriteCI32Span = write_index_span;
- dd->WriteCI8Span = write_index8_span;
- dd->WriteMonoCISpan = write_mono_index_span;
- dd->WriteCI32Pixels = write_index_pixels;
- dd->WriteMonoCIPixels = write_mono_index_pixels;
- dd->ReadCI32Span = read_index_span;
- dd->ReadCI32Pixels = read_index_pixels;
-
- /* RGB(A) span/pixel functions */
- dd->WriteRGBASpan = write_rgba_span;
- dd->WriteRGBSpan = write_rgb_span;
- dd->WriteMonoRGBASpan = write_mono_rgba_span;
- dd->WriteRGBAPixels = write_rgba_pixels;
- dd->WriteMonoRGBAPixels = write_mono_rgba_pixels;
- dd->ReadRGBASpan = read_rgba_span;
- dd->ReadRGBAPixels = read_rgba_pixels;
+ struct swrast_device_driver *dd = _swrast_GetDeviceDriverReference(ctx);
+
+ dd->SetBuffer = set_buffer;
+
+ /* The span functions should be in `dmesa_update_state', but I'm
+ * pretty sure they will never change during the life of the Visual
+ */
+
+ /* Index span/pixel functions */
+ dd->WriteCI32Span = write_index_span;
+ dd->WriteCI8Span = write_index8_span;
+ dd->WriteMonoCISpan = write_mono_index_span;
+ dd->WriteCI32Pixels = write_index_pixels;
+ dd->WriteMonoCIPixels = write_mono_index_pixels;
+ dd->ReadCI32Span = read_index_span;
+ dd->ReadCI32Pixels = read_index_pixels;
+
+ /* RGB(A) span/pixel functions */
+ dd->WriteRGBASpan = write_rgba_span;
+ dd->WriteRGBSpan = write_rgb_span;
+ dd->WriteMonoRGBASpan = write_mono_rgba_span;
+ dd->WriteRGBAPixels = write_rgba_pixels;
+ dd->WriteMonoRGBAPixels = write_mono_rgba_pixels;
+ dd->ReadRGBASpan = read_rgba_span;
+ dd->ReadRGBAPixels = read_rgba_pixels;
}
#endif /* FX */
-
/****************************************************************************
* DMesa Public API Functions
***************************************************************************/
@@ -958,457 +951,456 @@ static void dmesa_init_pointers (GLcontext *ctx)
/*
* The exact arguments to this function will depend on your window system
*/
-DMesaVisual DMesaCreateVisual (GLint width,
- GLint height,
- GLint colDepth,
- GLint refresh,
- GLboolean dbFlag,
- GLboolean rgbFlag,
- GLint alphaSize,
- GLint depthSize,
- GLint stencilSize,
- GLint accumSize)
+DMesaVisual
+DMesaCreateVisual (GLint width,
+ GLint height,
+ GLint colDepth,
+ GLint refresh,
+ GLboolean dbFlag,
+ GLboolean rgbFlag,
+ GLint alphaSize,
+ GLint depthSize,
+ GLint stencilSize,
+ GLint accumSize)
{
- DMesaVisual v;
- GLint redBits, greenBits, blueBits, alphaBits, indexBits;
- GLboolean sw_alpha;
-
- alphaBits = 0;
-
- if (!rgbFlag) {
- indexBits = 8;
- redBits = 0;
- greenBits = 0;
- blueBits = 0;
- } else {
- indexBits = 0;
- switch (colDepth) {
- case 8:
- redBits = 8;
- greenBits = 8;
- blueBits = 8;
- break;
- case 15:
- alphaBits = 1;
- redBits = 5;
- greenBits = 5;
- blueBits = 5;
- break;
- case 16:
- redBits = 5;
- greenBits = 6;
- blueBits = 5;
- break;
- case 32:
- alphaBits = 8;
- case 24:
- redBits = 8;
- greenBits = 8;
- blueBits = 8;
- break;
- default:
- return NULL;
- }
- }
-
- /* Okay,
- * `alphaBits' is what we can provide
- * `alphaSize' is what app requests
- *
- * Note that alpha buffering is required only if destination alpha is used
- * in alpha blending; alpha blending modes that do not use destination alpha
- * can be used w/o alpha buffer.
- *
- * We will use whatever ALPHA app requests. Later, in `CreateBuffer' we'll
- * instruct Mesa to use its own ALPHA buffer, by passing a non-FALSE value
- * for ALPHA to `_mesa_initialize_framebuffer'.
- *
- * Basically, 32bit modes provide ALPHA storage, but can we rely on this?
- */
- alphaBits = alphaSize;
- sw_alpha = (alphaBits > 0);
+ DMesaVisual v;
+ GLint redBits, greenBits, blueBits, alphaBits, indexBits;
+ GLboolean sw_alpha;
+
+ alphaBits = 0;
+
+ if (!rgbFlag) {
+ indexBits = 8;
+ redBits = 0;
+ greenBits = 0;
+ blueBits = 0;
+ } else {
+ indexBits = 0;
+ switch (colDepth) {
+ case 8:
+ redBits = 8;
+ greenBits = 8;
+ blueBits = 8;
+ break;
+ case 15:
+ alphaBits = 1;
+ redBits = 5;
+ greenBits = 5;
+ blueBits = 5;
+ break;
+ case 16:
+ redBits = 5;
+ greenBits = 6;
+ blueBits = 5;
+ break;
+ case 32:
+ alphaBits = 8;
+ case 24:
+ redBits = 8;
+ greenBits = 8;
+ blueBits = 8;
+ break;
+ default:
+ return NULL;
+ }
+ }
+
+ /* Okay,
+ * `alphaBits' is what we can provide
+ * `alphaSize' is what app requests
+ *
+ * Note that alpha buffering is required only if destination alpha is used
+ * in alpha blending; alpha blending modes that do not use destination alpha
+ * can be used w/o alpha buffer.
+ *
+ * We will use whatever ALPHA app requests. Later, in `CreateBuffer' we'll
+ * instruct Mesa to use its own ALPHA buffer, by passing a non-FALSE value
+ * for ALPHA to `_mesa_initialize_framebuffer'.
+ *
+ * Basically, 32bit modes provide ALPHA storage, but can we rely on this?
+ */
+ alphaBits = alphaSize;
+ sw_alpha = (alphaBits > 0);
#ifndef FX
- if (!dbFlag) {
- return NULL;
- }
- if ((colDepth=vl_video_init(width, height, colDepth, rgbFlag, refresh)) <= 0) {
- return NULL;
- }
+ if (!dbFlag) {
+ return NULL;
+ }
+ if ((colDepth=vl_video_init(width, height, colDepth, rgbFlag, refresh)) <= 0) {
+ return NULL;
+ }
#else /* FX */
- if (!rgbFlag) {
- return NULL;
- } else {
- char *env;
-
- if ((env = getenv("MESA_FX_INFO")) && (env[0] == 'r')) {
- freopen("MESA.LOG", "w", stderr);
- }
-
- if (refresh && (((env = getenv("FX_GLIDE_REFRESH")) == NULL) || !atoi(env))) {
- /* if we are passed non-zero value for refresh, we need to override
- * default refresh rate. However, if FX_GLIDE_REFRESH is already set
- * to 0, we won't override it, because it has a special meaning for
- * DJGPP Glide3x (switch via VESA, using BIOS default refresh).
- */
- char tmp[32];
- sprintf(tmp, "FX_GLIDE_REFRESH=%u", refresh);
- putenv(tmp);
- }
- }
+ if (!rgbFlag) {
+ return NULL;
+ } else {
+ char *env;
+
+ if ((env = getenv("MESA_FX_INFO")) && (env[0] == 'r')) {
+ freopen("MESA.LOG", "w", stderr);
+ }
+
+ if (refresh && (((env = getenv("FX_GLIDE_REFRESH")) == NULL) || !atoi(env))) {
+ /* if we are passed non-zero value for refresh, we need to override
+ * default refresh rate. However, if FX_GLIDE_REFRESH is already set
+ * to 0, we won't override it, because it has a special meaning for
+ * DJGPP Glide3x (switch via VESA, using BIOS default refresh).
+ */
+ char tmp[32];
+ sprintf(tmp, "FX_GLIDE_REFRESH=%u", refresh);
+ putenv(tmp);
+ }
+ }
#endif /* FX */
- if ((v=(DMesaVisual)CALLOC_STRUCT(dmesa_visual)) != NULL) {
- /* Create core visual */
- _mesa_initialize_visual((GLvisual *)v,
- rgbFlag, /* rgb */
- dbFlag,
- GL_FALSE, /* stereo */
- redBits,
- greenBits,
- blueBits,
- alphaBits,
- indexBits, /* indexBits */
- depthSize,
- stencilSize,
- accumSize, /* accumRed */
- accumSize, /* accumGreen */
- accumSize, /* accumBlue */
- alphaBits?accumSize:0, /* accumAlpha */
- 1); /* numSamples */
+ if ((v=(DMesaVisual)CALLOC_STRUCT(dmesa_visual)) != NULL) {
+ /* Create core visual */
+ _mesa_initialize_visual((GLvisual *)v,
+ rgbFlag, /* rgb */
+ dbFlag,
+ GL_FALSE, /* stereo */
+ redBits,
+ greenBits,
+ blueBits,
+ alphaBits,
+ indexBits, /* indexBits */
+ depthSize,
+ stencilSize,
+ accumSize, /* accumRed */
+ accumSize, /* accumGreen */
+ accumSize, /* accumBlue */
+ alphaBits?accumSize:0, /* accumAlpha */
+ 1); /* numSamples */
#ifndef FX
- v->sw_alpha = sw_alpha;
- v->z_buffer = (depthSize > 0) ? 1 : 0;
+ v->sw_alpha = sw_alpha;
+ v->z_buffer = (depthSize > 0) ? 1 : 0;
#endif
- }
+ }
- return v;
+ return v;
}
-
-void DMesaDestroyVisual (DMesaVisual v)
+void
+DMesaDestroyVisual (DMesaVisual v)
{
#ifndef FX
- vl_video_exit();
+ vl_video_exit();
#endif
- _mesa_destroy_visual((GLvisual *)v);
+ _mesa_destroy_visual((GLvisual *)v);
}
-
-DMesaBuffer DMesaCreateBuffer (DMesaVisual visual,
- GLint xpos, GLint ypos,
- GLint width, GLint height)
+DMesaBuffer
+DMesaCreateBuffer (DMesaVisual visual,
+ GLint xpos, GLint ypos,
+ GLint width, GLint height)
{
#ifndef FX
- DMesaBuffer b;
-
- if ((b=(DMesaBuffer)CALLOC_STRUCT(dmesa_buffer)) != NULL) {
- _mesa_initialize_framebuffer((GLframebuffer *)b,
- (GLvisual *)visual,
- visual->z_buffer == 1,
- ((GLvisual *)visual)->stencilBits > 0,
- ((GLvisual *)visual)->accumRedBits > 0,
- visual->sw_alpha);
- b->xpos = xpos;
- b->ypos = ypos;
- b->width = width;
- b->height = height;
- }
-
- return b;
+ DMesaBuffer b;
+
+ if ((b=(DMesaBuffer)CALLOC_STRUCT(dmesa_buffer)) != NULL) {
+ _mesa_initialize_framebuffer((GLframebuffer *)b,
+ (GLvisual *)visual,
+ visual->z_buffer == 1,
+ ((GLvisual *)visual)->stencilBits > 0,
+ ((GLvisual *)visual)->accumRedBits > 0,
+ visual->sw_alpha);
+ b->xpos = xpos;
+ b->ypos = ypos;
+ b->width = width;
+ b->height = height;
+ }
+
+ return b;
#else /* FX */
- GLvisual *v = (GLvisual *)visual;
- int i = 0, fx_attrib[32];
+ GLvisual *v = (GLvisual *)visual;
+ int i = 0, fx_attrib[32];
- if (v->doubleBufferMode) fx_attrib[i++] = FXMESA_DOUBLEBUFFER;
- if (v->depthBits > 0) { fx_attrib[i++] = FXMESA_DEPTH_SIZE; fx_attrib[i++] = v->depthBits; }
- if (v->stencilBits > 0) { fx_attrib[i++] = FXMESA_STENCIL_SIZE; fx_attrib[i++] = v->stencilBits; }
- if (v->accumRedBits > 0) { fx_attrib[i++] = FXMESA_ACCUM_SIZE; fx_attrib[i++] = v->accumRedBits; }
- if (v->alphaBits) { fx_attrib[i++] = FXMESA_ALPHA_SIZE; fx_attrib[i++] = v->alphaBits; }
- fx_attrib[i++] = FXMESA_COLORDEPTH;
- fx_attrib[i++] = v->redBits + v->greenBits + v->blueBits;
- fx_attrib[i] = FXMESA_NONE;
+ if (v->doubleBufferMode) fx_attrib[i++] = FXMESA_DOUBLEBUFFER;
+ if (v->depthBits > 0) { fx_attrib[i++] = FXMESA_DEPTH_SIZE; fx_attrib[i++] = v->depthBits; }
+ if (v->stencilBits > 0) { fx_attrib[i++] = FXMESA_STENCIL_SIZE; fx_attrib[i++] = v->stencilBits; }
+ if (v->accumRedBits > 0) { fx_attrib[i++] = FXMESA_ACCUM_SIZE; fx_attrib[i++] = v->accumRedBits; }
+ if (v->alphaBits) { fx_attrib[i++] = FXMESA_ALPHA_SIZE; fx_attrib[i++] = v->alphaBits; }
+ fx_attrib[i++] = FXMESA_COLORDEPTH;
+ fx_attrib[i++] = v->redBits + v->greenBits + v->blueBits;
+ fx_attrib[i] = FXMESA_NONE;
- return (DMesaBuffer)fxMesaCreateBestContext(-1, width, height, fx_attrib);
+ return (DMesaBuffer)fxMesaCreateBestContext(-1, width, height, fx_attrib);
#endif /* FX */
}
-
-void DMesaDestroyBuffer (DMesaBuffer b)
+void
+DMesaDestroyBuffer (DMesaBuffer b)
{
#ifndef FX
- if (b->the_window != NULL) {
- free(b->the_window);
- }
- _mesa_destroy_framebuffer((GLframebuffer *)b);
+ if (b->the_window != NULL) {
+ free(b->the_window);
+ }
+ _mesa_destroy_framebuffer((GLframebuffer *)b);
#else
- fxMesaDestroyContext((fxMesaContext)b);
+ fxMesaDestroyContext((fxMesaContext)b);
#endif
}
-
-DMesaContext DMesaCreateContext (DMesaVisual visual,
- DMesaContext share)
+DMesaContext
+DMesaCreateContext (DMesaVisual visual, DMesaContext share)
{
- GLcontext *c;
+ GLcontext *c;
#ifndef FX
- TNLcontext *tnl;
- struct dd_function_table functions;
-
- if ((c=(GLcontext *)CALLOC_STRUCT(dmesa_context)) != NULL) {
- /* Initialize device driver function table */
- _mesa_init_driver_functions(&functions);
- /* override with our functions */
- dmesa_init_driver_functions(visual, &functions);
-
- _mesa_initialize_context(c,
- (GLvisual *)visual,
- (GLcontext *)share,
- &functions,
- (void *)c);
+ TNLcontext *tnl;
+ struct dd_function_table functions;
+
+ if ((c=(GLcontext *)CALLOC_STRUCT(dmesa_context)) != NULL) {
+ /* Initialize device driver function table */
+ _mesa_init_driver_functions(&functions);
+ /* override with our functions */
+ dmesa_init_driver_functions(visual, &functions);
+
+ _mesa_initialize_context(c,
+ (GLvisual *)visual,
+ (GLcontext *)share,
+ &functions,
+ (void *)c);
- _mesa_enable_sw_extensions(c);
- _mesa_enable_1_3_extensions(c);
- _mesa_enable_1_4_extensions(c);
- _mesa_enable_1_5_extensions(c);
- _mesa_enable_2_0_extensions(c);
+ _mesa_enable_sw_extensions(c);
+ _mesa_enable_1_3_extensions(c);
+ _mesa_enable_1_4_extensions(c);
+ _mesa_enable_1_5_extensions(c);
+ _mesa_enable_2_0_extensions(c);
#if SWTC
- if (c->Mesa_DXTn) {
- _mesa_enable_extension(c, "GL_EXT_texture_compression_s3tc");
- _mesa_enable_extension(c, "GL_S3_s3tc");
- }
- _mesa_enable_extension(c, "GL_3DFX_texture_compression_FXT1");
+ if (c->Mesa_DXTn) {
+ _mesa_enable_extension(c, "GL_EXT_texture_compression_s3tc");
+ _mesa_enable_extension(c, "GL_S3_s3tc");
+ }
+ _mesa_enable_extension(c, "GL_3DFX_texture_compression_FXT1");
#endif
- /* you probably have to do a bunch of other initializations here. */
- ((DMesaContext)c)->visual = visual;
-
- /* Initialize the software rasterizer and helper modules.
- */
- _swrast_CreateContext(c);
- _ac_CreateContext(c);
- _tnl_CreateContext(c);
- _swsetup_CreateContext(c);
- /* tnl setup */
- tnl = TNL_CONTEXT(c);
- tnl->Driver.RunPipeline = _tnl_run_pipeline;
- /* swrast setup */
- if (((GLvisual *)visual)->rgbMode) dmesa_register_swrast_functions(c);
- dmesa_init_pointers(c);
- _swsetup_Wakeup(c);
- }
+ /* you probably have to do a bunch of other initializations here. */
+ ((DMesaContext)c)->visual = visual;
+
+ /* Initialize the software rasterizer and helper modules.
+ */
+ _swrast_CreateContext(c);
+ _ac_CreateContext(c);
+ _tnl_CreateContext(c);
+ _swsetup_CreateContext(c);
+ /* tnl setup */
+ tnl = TNL_CONTEXT(c);
+ tnl->Driver.RunPipeline = _tnl_run_pipeline;
+ /* swrast setup */
+ if (((GLvisual *)visual)->rgbMode) dmesa_register_swrast_functions(c);
+ dmesa_init_pointers(c);
+ _swsetup_Wakeup(c);
+ }
#else /* FX */
- c = (GLcontext *)0xdeadbeef;
+ c = (GLcontext *)0xdeadbeef;
#endif /* FX */
- return (DMesaContext)c;
+ return (DMesaContext)c;
}
-
-void DMesaDestroyContext (DMesaContext c)
+void
+DMesaDestroyContext (DMesaContext c)
{
#ifndef FX
- if (c) {
- _swsetup_DestroyContext((GLcontext *)c);
- _swrast_DestroyContext((GLcontext *)c);
- _tnl_DestroyContext((GLcontext *)c);
- _ac_DestroyContext((GLcontext *)c);
- _mesa_destroy_context((GLcontext *)c);
- }
+ if (c) {
+ _swsetup_DestroyContext((GLcontext *)c);
+ _swrast_DestroyContext((GLcontext *)c);
+ _tnl_DestroyContext((GLcontext *)c);
+ _ac_DestroyContext((GLcontext *)c);
+ _mesa_destroy_context((GLcontext *)c);
+ }
#endif
}
-
-GLboolean DMesaMoveBuffer (GLint xpos, GLint ypos)
+GLboolean
+DMesaMoveBuffer (GLint xpos, GLint ypos)
{
#ifndef FX
- GET_CURRENT_CONTEXT(ctx);
- DMesaBuffer b = ((DMesaContext)ctx)->buffer;
-
- if (vl_sync_buffer(&b->the_window, xpos, ypos, b->width, b->height) == 0) {
- b->xpos = xpos;
- b->ypos = ypos;
- return GL_TRUE;
- }
+ GET_CURRENT_CONTEXT(ctx);
+ DMesaBuffer b = ((DMesaContext)ctx)->buffer;
+
+ if (vl_sync_buffer(&b->the_window, xpos, ypos, b->width, b->height) == 0) {
+ b->xpos = xpos;
+ b->ypos = ypos;
+ return GL_TRUE;
+ }
#endif
- return GL_FALSE;
+ return GL_FALSE;
}
-
-GLboolean DMesaResizeBuffer (GLint width, GLint height)
+GLboolean
+DMesaResizeBuffer (GLint width, GLint height)
{
#ifndef FX
- GET_CURRENT_CONTEXT(ctx);
- DMesaBuffer b = ((DMesaContext)ctx)->buffer;
-
- if (vl_sync_buffer(&b->the_window, b->xpos, b->ypos, width, height) == 0) {
- b->width = width;
- b->height = height;
- return GL_TRUE;
- }
+ GET_CURRENT_CONTEXT(ctx);
+ DMesaBuffer b = ((DMesaContext)ctx)->buffer;
+
+ if (vl_sync_buffer(&b->the_window, b->xpos, b->ypos, width, height) == 0) {
+ b->width = width;
+ b->height = height;
+ return GL_TRUE;
+ }
#endif
- return GL_FALSE;
+ return GL_FALSE;
}
-
/*
* Make the specified context and buffer the current one.
*/
-GLboolean DMesaMakeCurrent (DMesaContext c, DMesaBuffer b)
+GLboolean
+DMesaMakeCurrent (DMesaContext c, DMesaBuffer b)
{
#ifndef FX
- if ((c != NULL) && (b != NULL)) {
- if (vl_sync_buffer(&b->the_window, b->xpos, b->ypos, b->width, b->height) != 0) {
- return GL_FALSE;
- }
-
- c->buffer = b;
-
- _mesa_make_current((GLcontext *)c, (GLframebuffer *)b);
- if (((GLcontext *)c)->Viewport.Width == 0) {
- /* initialize viewport to window size */
- _mesa_Viewport(0, 0, b->width, b->height);
- }
- } else {
- /* Detach */
- _mesa_make_current(NULL, NULL);
- }
+ if ((c != NULL) && (b != NULL)) {
+ if (vl_sync_buffer(&b->the_window, b->xpos, b->ypos, b->width, b->height) != 0) {
+ return GL_FALSE;
+ }
+
+ c->buffer = b;
+
+ _mesa_make_current((GLcontext *)c, (GLframebuffer *)b);
+ if (((GLcontext *)c)->Viewport.Width == 0) {
+ /* initialize viewport to window size */
+ _mesa_Viewport(0, 0, b->width, b->height);
+ }
+ } else {
+ /* Detach */
+ _mesa_make_current(NULL, NULL);
+ }
#else
- fxMesaMakeCurrent((fxMesaContext)b);
+ fxMesaMakeCurrent((fxMesaContext)b);
#endif
- return GL_TRUE;
+ return GL_TRUE;
}
-
-void DMesaSwapBuffers (DMesaBuffer b)
+void
+DMesaSwapBuffers (DMesaBuffer b)
{
- /* copy/swap back buffer to front if applicable */
+ /* copy/swap back buffer to front if applicable */
#ifndef FX
- GET_CURRENT_CONTEXT(ctx);
- _mesa_notifySwapBuffers(ctx);
- vl_flip();
+ GET_CURRENT_CONTEXT(ctx);
+ _mesa_notifySwapBuffers(ctx);
+ vl_flip();
#else
- fxMesaSwapBuffers();
+ fxMesaSwapBuffers();
#endif
}
-
-void DMesaSetCI (int ndx, GLfloat red, GLfloat green, GLfloat blue)
+void
+DMesaSetCI (int ndx, GLfloat red, GLfloat green, GLfloat blue)
{
#ifndef FX
- vl_setCI(ndx, red, green, blue);
+ vl_setCI(ndx, red, green, blue);
#endif
}
-
-DMesaContext DMesaGetCurrentContext (void)
+DMesaContext
+DMesaGetCurrentContext (void)
{
- GET_CURRENT_CONTEXT(ctx);
+ GET_CURRENT_CONTEXT(ctx);
#ifndef FX
#else
- if (ctx != NULL) {
- ctx = (GLcontext *)0xdeadbeef;
- }
+ if (ctx != NULL) {
+ ctx = (GLcontext *)0xdeadbeef;
+ }
#endif
- return (DMesaContext)ctx;
+ return (DMesaContext)ctx;
}
-
-DMesaBuffer DMesaGetCurrentBuffer (void)
+DMesaBuffer
+DMesaGetCurrentBuffer (void)
{
- const DMesaContext dmesa = DMesaGetCurrentContext();
+ const DMesaContext dmesa = DMesaGetCurrentContext();
- if (dmesa == NULL) {
- return NULL;
- }
+ if (dmesa == NULL) {
+ return NULL;
+ }
#ifndef FX
- return dmesa->buffer;
+ return dmesa->buffer;
#else
- return (DMesaBuffer)fxMesaGetCurrentContext();
+ return (DMesaBuffer)fxMesaGetCurrentContext();
#endif
}
-
-void *DMesaGetProcAddress (const char *name)
+void *
+DMesaGetProcAddress (const char *name)
{
- void *p = (void *)_glapi_get_proc_address(name);
+ void *p = (void *)_glapi_get_proc_address(name);
-/* TODO: handle DMesa* namespace
- if (p == NULL) {
- }
-*/
+ /* TODO: handle DMesa* namespace
+ if (p == NULL) {
+ }
+ */
- return p;
+ return p;
}
-
-int DMesaGetIntegerv (GLenum pname, GLint *params)
+int
+DMesaGetIntegerv (GLenum pname, GLint *params)
{
- switch (pname) {
- case DMESA_GET_SCREEN_SIZE:
- #ifndef FX
- vl_get(VL_GET_SCREEN_SIZE, params);
- #else
- fxGetScreenGeometry(&params[0], &params[1]);
- #endif
- break;
- case DMESA_GET_DRIVER_CAPS:
- #ifndef FX
- params[0] = DMESA_DRIVER_SWDB_BIT;
- #else
- params[0] = DMESA_DRIVER_LLWO_BIT;
- #endif
- break;
- case DMESA_GET_VIDEO_MODES:
- #ifndef FX
- return vl_get(VL_GET_VIDEO_MODES, params);
- #else
- return -1; /* TODO */
- #endif
- case DMESA_GET_BUFFER_ADDR:
- #ifndef FX
- {
- DMesaContext c = (DMesaContext)DMesaGetCurrentContext();
- if (c != NULL) {
- DMesaBuffer b = c->buffer;
- if (b != NULL) {
- params[0] = (GLint)b->the_window;
- }
- }
- }
- #else
- return -1;
- #endif
- break;
- default:
- return -1;
- }
-
- return 0;
+ switch (pname) {
+ case DMESA_GET_SCREEN_SIZE:
+ #ifndef FX
+ vl_get(VL_GET_SCREEN_SIZE, params);
+ #else
+ fxGetScreenGeometry(&params[0], &params[1]);
+ #endif
+ break;
+ case DMESA_GET_DRIVER_CAPS:
+ #ifndef FX
+ params[0] = DMESA_DRIVER_SWDB_BIT;
+ #else
+ params[0] = DMESA_DRIVER_LLWO_BIT;
+ #endif
+ break;
+ case DMESA_GET_VIDEO_MODES:
+ #ifndef FX
+ return vl_get(VL_GET_VIDEO_MODES, params);
+ #else
+ return -1; /* TODO */
+ #endif
+ case DMESA_GET_BUFFER_ADDR: {
+ #ifndef FX
+ DMesaContext c = (DMesaContext)DMesaGetCurrentContext();
+ if (c != NULL) {
+ DMesaBuffer b = c->buffer;
+ if (b != NULL) {
+ params[0] = (GLint)b->the_window;
+ }
+ }
+ break;
+ #else
+ return -1;
+ #endif
+ }
+ default:
+ return -1;
+ }
+
+ return 0;
}
@@ -1421,9 +1413,9 @@ extern_asm(_malloc);
extern_asm(_memset);
DXE_EXPORT_TABLE_AUTO (___dxe_eta___dxtn)
- DXE_EXPORT_ASM (___dj_assert)
- DXE_EXPORT_ASM (_free)
- DXE_EXPORT_ASM (_malloc)
- DXE_EXPORT_ASM (_memset)
+ DXE_EXPORT_ASM (___dj_assert)
+ DXE_EXPORT_ASM (_free)
+ DXE_EXPORT_ASM (_malloc)
+ DXE_EXPORT_ASM (_memset)
DXE_EXPORT_END
#endif