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Diffstat (limited to 'nx-X11/extras/Mesa/src/mesa/drivers/dri/mach64/mach64_span.c')
-rw-r--r--nx-X11/extras/Mesa/src/mesa/drivers/dri/mach64/mach64_span.c231
1 files changed, 231 insertions, 0 deletions
diff --git a/nx-X11/extras/Mesa/src/mesa/drivers/dri/mach64/mach64_span.c b/nx-X11/extras/Mesa/src/mesa/drivers/dri/mach64/mach64_span.c
new file mode 100644
index 000000000..0ac0eeaa6
--- /dev/null
+++ b/nx-X11/extras/Mesa/src/mesa/drivers/dri/mach64/mach64_span.c
@@ -0,0 +1,231 @@
+/* $XFree86$ */ /* -*- mode: c; c-basic-offset: 3 -*- */
+/*
+ * Copyright 2000 Gareth Hughes
+ * 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 (including the next
+ * paragraph) 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
+ * GARETH HUGHES 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.
+ */
+
+/*
+ * Authors:
+ * Gareth Hughes <gareth@valinux.com>
+ * Leif Delgass <ldelgass@retinalburn.net>
+ * Jos�Fonseca <j_r_fonseca@yahoo.co.uk>
+ */
+
+#include "mach64_context.h"
+#include "mach64_ioctl.h"
+#include "mach64_state.h"
+#include "mach64_span.h"
+
+#include "swrast/swrast.h"
+
+#define DBG 0
+
+#define LOCAL_VARS \
+ mach64ContextPtr mmesa = MACH64_CONTEXT(ctx); \
+ mach64ScreenRec *mach64Screen = mmesa->mach64Screen; \
+ __DRIscreenPrivate *driScreen = mmesa->driScreen; \
+ __DRIdrawablePrivate *dPriv = mmesa->driDrawable; \
+ GLuint pitch = mmesa->drawPitch * mach64Screen->cpp; \
+ GLuint height = dPriv->h; \
+ char *buf = (char *)(driScreen->pFB + \
+ mmesa->drawOffset + \
+ (dPriv->x * mach64Screen->cpp) + \
+ (dPriv->y * pitch)); \
+ char *read_buf = (char *)(driScreen->pFB + \
+ mmesa->readOffset + \
+ (dPriv->x * mach64Screen->cpp) + \
+ (dPriv->y * pitch)); \
+ GLushort p; \
+ (void) read_buf; (void) buf; (void) p
+
+#define LOCAL_DEPTH_VARS \
+ mach64ContextPtr mmesa = MACH64_CONTEXT(ctx); \
+ mach64ScreenRec *mach64Screen = mmesa->mach64Screen; \
+ __DRIdrawablePrivate *dPriv = mmesa->driDrawable; \
+ __DRIscreenPrivate *driScreen = mmesa->driScreen; \
+ GLuint pitch = mach64Screen->depthPitch * 2; \
+ GLuint height = dPriv->h; \
+ char *buf = (char *)(driScreen->pFB + \
+ mach64Screen->depthOffset + \
+ dPriv->x * 2 + \
+ dPriv->y * pitch)
+
+#define LOCAL_STENCIL_VARS LOCAL_DEPTH_VARS
+
+#define Y_FLIP( _y ) (height - _y - 1)
+
+#define HW_LOCK()
+
+/* FIXME could/should we use dPriv->numClipRects like the other drivers? */
+#define HW_CLIPLOOP() \
+ do { \
+ int _nc = mmesa->numClipRects; \
+ \
+ while ( _nc-- ) { \
+ int minx = mmesa->pClipRects[_nc].x1 - mmesa->drawX; \
+ int miny = mmesa->pClipRects[_nc].y1 - mmesa->drawY; \
+ int maxx = mmesa->pClipRects[_nc].x2 - mmesa->drawX; \
+ int maxy = mmesa->pClipRects[_nc].y2 - mmesa->drawY;
+
+#define HW_ENDCLIPLOOP() \
+ } \
+ } while (0)
+
+#define HW_UNLOCK()
+
+
+
+/* ================================================================
+ * Color buffer
+ */
+
+/* 16 bit, RGB565 color spanline and pixel functions
+ */
+#define SPANTMP_PIXEL_FMT GL_RGB
+#define SPANTMP_PIXEL_TYPE GL_UNSIGNED_SHORT_5_6_5
+
+#define TAG(x) mach64##x##_RGB565
+#define TAG2(x,y) mach64##x##_RGB565##y
+#include "spantmp2.h"
+
+
+/* 32 bit, ARGB8888 color spanline and pixel functions
+ */
+/* FIXME the old code always read back alpha as 0xff, i.e. fully opaque.
+ Was there a reason to do so ? If so that'll won't work with that template... */
+#define SPANTMP_PIXEL_FMT GL_BGRA
+#define SPANTMP_PIXEL_TYPE GL_UNSIGNED_INT_8_8_8_8_REV
+
+#define TAG(x) mach64##x##_ARGB8888
+#define TAG2(x,y) mach64##x##_ARGB8888##y
+#include "spantmp2.h"
+
+
+/* ================================================================
+ * Depth buffer
+ */
+
+/* 16 bit depthbuffer functions.
+ */
+#define WRITE_DEPTH( _x, _y, d ) \
+ *(GLushort *)(buf + (_x)*2 + (_y)*pitch) = d;
+
+#define READ_DEPTH( d, _x, _y ) \
+ d = *(GLushort *)(buf + (_x)*2 + (_y)*pitch);
+
+#define TAG(x) mach64##x##_16
+#include "depthtmp.h"
+
+
+/*
+ * 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 mach64DDSetBuffer( GLcontext *ctx,
+ GLframebuffer *colorBuffer,
+ GLuint bufferBit )
+{
+ mach64ContextPtr mmesa = MACH64_CONTEXT(ctx);
+
+ switch ( bufferBit ) {
+ case BUFFER_BIT_FRONT_LEFT:
+ if (MACH64_DEBUG & DEBUG_VERBOSE_MSG)
+ fprintf(stderr,"%s: BUFFER_BIT_FRONT_LEFT\n", __FUNCTION__);
+ mmesa->drawOffset = mmesa->readOffset = mmesa->mach64Screen->frontOffset;
+ mmesa->drawPitch = mmesa->readPitch = mmesa->mach64Screen->frontPitch;
+ break;
+ case BUFFER_BIT_BACK_LEFT:
+ if (MACH64_DEBUG & DEBUG_VERBOSE_MSG)
+ fprintf(stderr,"%s: BUFFER_BIT_BACK_LEFT\n", __FUNCTION__);
+ mmesa->drawOffset = mmesa->readOffset = mmesa->mach64Screen->backOffset;
+ mmesa->drawPitch = mmesa->readPitch = mmesa->mach64Screen->backPitch;
+ break;
+ default:
+ break;
+ }
+}
+
+static void mach64SpanRenderStart( GLcontext *ctx )
+{
+ mach64ContextPtr mmesa = MACH64_CONTEXT(ctx);
+ LOCK_HARDWARE( mmesa );
+ FINISH_DMA_LOCKED( mmesa );
+}
+
+static void mach64SpanRenderFinish( GLcontext *ctx )
+{
+ mach64ContextPtr mmesa = MACH64_CONTEXT(ctx);
+ _swrast_flush( ctx );
+ UNLOCK_HARDWARE( mmesa );
+}
+
+void mach64DDInitSpanFuncs( GLcontext *ctx )
+{
+ struct swrast_device_driver *swdd = _swrast_GetDeviceDriverReference(ctx);
+
+ swdd->SetBuffer = mach64DDSetBuffer;
+ swdd->SpanRenderStart = mach64SpanRenderStart;
+ swdd->SpanRenderFinish = mach64SpanRenderFinish;
+}
+
+
+/**
+ * Plug in the Get/Put routines for the given driRenderbuffer.
+ */
+void
+mach64SetSpanFunctions(driRenderbuffer *drb, const GLvisual *vis)
+{
+ if (drb->Base.InternalFormat == GL_RGBA) {
+ if (vis->redBits == 5 && vis->greenBits == 6 && vis->blueBits == 5) {
+ mach64InitPointers_RGB565(&drb->Base);
+ }
+ else {
+ mach64InitPointers_ARGB8888(&drb->Base);
+ }
+ }
+ else if (drb->Base.InternalFormat == GL_DEPTH_COMPONENT16) {
+ drb->Base.GetRow = mach64ReadDepthSpan_16;
+ drb->Base.GetValues = mach64ReadDepthPixels_16;
+ drb->Base.PutRow = mach64WriteDepthSpan_16;
+ drb->Base.PutMonoRow = mach64WriteMonoDepthSpan_16;
+ drb->Base.PutValues = mach64WriteDepthPixels_16;
+ drb->Base.PutMonoValues = NULL;
+ }
+ else if (drb->Base.InternalFormat == GL_DEPTH_COMPONENT24) {
+ /* never */
+ drb->Base.GetRow = NULL;
+ drb->Base.GetValues = NULL;
+ drb->Base.PutRow = NULL;
+ drb->Base.PutMonoRow = NULL;
+ drb->Base.PutValues = NULL;
+ drb->Base.PutMonoValues = NULL;
+ }
+ else if (drb->Base.InternalFormat == GL_STENCIL_INDEX8_EXT) {
+ /* never */
+ drb->Base.GetRow = NULL;
+ drb->Base.GetValues = NULL;
+ drb->Base.PutRow = NULL;
+ drb->Base.PutMonoRow = NULL;
+ drb->Base.PutValues = NULL;
+ drb->Base.PutMonoValues = NULL;
+ }
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-30 12:16:29 +0000