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Diffstat (limited to 'src/mesa/drivers/dri/sis/sis_dd.c')
-rw-r--r--src/mesa/drivers/dri/sis/sis_dd.c269
1 files changed, 269 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/sis/sis_dd.c b/src/mesa/drivers/dri/sis/sis_dd.c
new file mode 100644
index 00000000000..39c00a18af6
--- /dev/null
+++ b/src/mesa/drivers/dri/sis/sis_dd.c
@@ -0,0 +1,269 @@
+/**************************************************************************
+
+Copyright 2000 Silicon Integrated Systems Corp, Inc., HsinChu, Taiwan.
+Copyright 2003 Eric Anholt
+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
+on the rights to use, copy, modify, merge, publish, distribute, sub
+license, 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 NON-INFRINGEMENT. IN NO EVENT SHALL
+ERIC ANHOLT OR SILICON INTEGRATED SYSTEMS CORP 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.
+
+**************************************************************************/
+/* $XFree86: xc/lib/GL/mesa/src/drv/sis/sis_ctx.c,v 1.3 2000/09/26 15:56:48 tsi Exp $ */
+
+/*
+ * Authors:
+ * Sung-Ching Lin <sclin@sis.com.tw>
+ * Eric Anholt <anholt@FreeBSD.org>
+ *
+ */
+
+#include "sis_context.h"
+#include "sis_dd.h"
+#include "sis_lock.h"
+#include "sis_alloc.h"
+#include "sis_span.h"
+#include "sis_state.h"
+#include "sis_tris.h"
+
+#include "swrast/swrast.h"
+#include "framebuffer.h"
+#include "renderbuffer.h"
+
+#include "utils.h"
+
+#define DRIVER_DATE "20051023"
+
+/* Return the width and height of the given buffer.
+ */
+static void
+sisGetBufferSize( GLframebuffer *buffer,
+ GLuint *width, GLuint *height )
+{
+ GET_CURRENT_CONTEXT(ctx);
+ sisContextPtr smesa = SIS_CONTEXT(ctx);
+
+ LOCK_HARDWARE();
+ *width = smesa->driDrawable->w;
+ *height = smesa->driDrawable->h;
+ UNLOCK_HARDWARE();
+}
+
+/* Return various strings for glGetString().
+ */
+static const GLubyte *
+sisGetString( GLcontext *ctx, GLenum name )
+{
+ sisContextPtr smesa = SIS_CONTEXT(ctx);
+ static char buffer[128];
+ unsigned offset;
+ GLuint agp_mode = (smesa->AGPSize > 0);
+
+ switch ( name )
+ {
+ case GL_VENDOR:
+ return (GLubyte *)"Eric Anholt";
+
+ case GL_RENDERER:
+ offset = driGetRendererString( buffer, "SiS", DRIVER_DATE, agp_mode );
+
+ return (GLubyte *)buffer;
+
+ default:
+ return NULL;
+ }
+}
+
+/* Send all commands to the hardware.
+ */
+static void
+sisFlush( GLcontext *ctx )
+{
+ sisContextPtr smesa = SIS_CONTEXT(ctx);
+
+ SIS_FIREVERTICES(smesa);
+}
+
+/* Make sure all commands have been sent to the hardware and have
+ * completed processing.
+ */
+static void
+sisFinish( GLcontext *ctx )
+{
+ sisContextPtr smesa = SIS_CONTEXT(ctx);
+
+ SIS_FIREVERTICES(smesa);
+ LOCK_HARDWARE();
+ WaitEngIdle( smesa );
+ UNLOCK_HARDWARE();
+}
+
+static void
+sisDeleteRenderbuffer(struct gl_renderbuffer *rb)
+{
+ /* Don't free() since we're contained in sis_context struct. */
+}
+
+static GLboolean
+sisRenderbufferStorage(GLcontext *ctx, struct gl_renderbuffer *rb,
+ GLenum internalFormat, GLuint width, GLuint height)
+{
+ rb->Width = width;
+ rb->Height = height;
+ rb->InternalFormat = internalFormat;
+ return GL_TRUE;
+}
+
+static void
+sisInitRenderbuffer(struct gl_renderbuffer *rb, GLenum format)
+{
+ const GLuint name = 0;
+
+ _mesa_init_renderbuffer(rb, name);
+
+ /* Make sure we're using a null-valued GetPointer routine */
+ assert(rb->GetPointer(NULL, rb, 0, 0) == NULL);
+
+ rb->InternalFormat = format;
+
+ if (format == GL_RGBA) {
+ /* Color */
+ rb->_BaseFormat = GL_RGBA;
+ rb->DataType = GL_UNSIGNED_BYTE;
+ }
+ else if (format == GL_DEPTH_COMPONENT16) {
+ /* Depth */
+ rb->_BaseFormat = GL_DEPTH_COMPONENT;
+ /* we always Get/Put 32-bit Z values */
+ rb->DataType = GL_UNSIGNED_INT;
+ }
+ else if (format == GL_DEPTH_COMPONENT24) {
+ /* Depth */
+ rb->_BaseFormat = GL_DEPTH_COMPONENT;
+ /* we always Get/Put 32-bit Z values */
+ rb->DataType = GL_UNSIGNED_INT;
+ }
+ else {
+ /* Stencil */
+ ASSERT(format == GL_STENCIL_INDEX8_EXT);
+ rb->_BaseFormat = GL_STENCIL_INDEX;
+ rb->DataType = GL_UNSIGNED_BYTE;
+ }
+
+ rb->Delete = sisDeleteRenderbuffer;
+ rb->AllocStorage = sisRenderbufferStorage;
+}
+
+void
+sisUpdateBufferSize(sisContextPtr smesa)
+{
+ __GLSiSHardware *current = &smesa->current;
+ __GLSiSHardware *prev = &smesa->prev;
+ struct gl_framebuffer *fb = smesa->glCtx->DrawBuffer;
+
+ if (!smesa->front.Base.InternalFormat) {
+ /* do one-time init for the renderbuffers */
+ sisInitRenderbuffer(&smesa->front.Base, GL_RGBA);
+ sisSetSpanFunctions(&smesa->front, &fb->Visual);
+ _mesa_add_renderbuffer(fb, BUFFER_FRONT_LEFT, &smesa->front.Base);
+
+ if (fb->Visual.doubleBufferMode) {
+ sisInitRenderbuffer(&smesa->back.Base, GL_RGBA);
+ sisSetSpanFunctions(&smesa->back, &fb->Visual);
+ _mesa_add_renderbuffer(fb, BUFFER_BACK_LEFT, &smesa->back.Base);
+ }
+
+ if (smesa->glCtx->Visual.depthBits > 0) {
+ sisInitRenderbuffer(&smesa->depth.Base,
+ (smesa->glCtx->Visual.depthBits == 16
+ ? GL_DEPTH_COMPONENT16 : GL_DEPTH_COMPONENT24));
+ sisSetSpanFunctions(&smesa->depth, &fb->Visual);
+ _mesa_add_renderbuffer(fb, BUFFER_DEPTH, &smesa->depth.Base);
+ }
+
+ if (smesa->glCtx->Visual.stencilBits > 0) {
+ sisInitRenderbuffer(&smesa->stencil.Base, GL_STENCIL_INDEX8_EXT);
+ sisSetSpanFunctions(&smesa->stencil, &fb->Visual);
+ _mesa_add_renderbuffer(fb, BUFFER_STENCIL, &smesa->stencil.Base);
+ }
+ }
+
+ /* Make sure initialization did what we think it should */
+ assert(smesa->front.Base.InternalFormat);
+ assert(smesa->front.Base.AllocStorage);
+ if (fb->Visual.doubleBufferMode) {
+ assert(fb->Attachment[BUFFER_BACK_LEFT].Renderbuffer);
+ assert(smesa->front.Base.AllocStorage);
+ }
+ if (fb->Visual.depthBits) {
+ assert(fb->Attachment[BUFFER_DEPTH].Renderbuffer);
+ assert(smesa->depth.Base.AllocStorage);
+ }
+
+ /* XXX Should get the base offset of the frontbuffer from the X Server */
+ smesa->front.offset = smesa->driDrawable->x * smesa->bytesPerPixel +
+ smesa->driDrawable->y * smesa->front.pitch;
+ smesa->front.map = (char *) smesa->driScreen->pFB + smesa->front.offset;
+
+ if ( smesa->width == smesa->driDrawable->w &&
+ smesa->height == smesa->driDrawable->h )
+ {
+ return;
+ }
+
+ smesa->front.bpp = smesa->bytesPerPixel * 8;
+ /* Front pitch set on context create */
+ smesa->front.size = smesa->front.pitch * smesa->driDrawable->h;
+
+ smesa->width = smesa->driDrawable->w;
+ smesa->height = smesa->driDrawable->h;
+ smesa->bottom = smesa->height - 1;
+
+ if (smesa->back.offset)
+ sisFreeBackbuffer( smesa );
+ if (smesa->depth.offset)
+ sisFreeZStencilBuffer( smesa );
+
+ if ( smesa->glCtx->Visual.depthBits > 0 )
+ sisAllocZStencilBuffer( smesa );
+ if ( smesa->glCtx->Visual.doubleBufferMode )
+ sisAllocBackbuffer( smesa );
+
+ current->hwZ &= ~MASK_ZBufferPitch;
+ current->hwZ |= smesa->depth.pitch >> 2;
+ current->hwOffsetZ = smesa->depth.offset >> 2;
+
+ if ((current->hwOffsetZ != prev->hwOffsetZ) || (current->hwZ != prev->hwZ)) {
+ prev->hwOffsetZ = current->hwOffsetZ;
+ prev->hwZ = current->hwZ;
+ smesa->GlobalFlag |= GFLAG_ZSETTING;
+ }
+
+ sisUpdateClipping( smesa->glCtx );
+}
+
+/* Initialize the driver's misc functions.
+ */
+void
+sisInitDriverFuncs( struct dd_function_table *functions )
+{
+ functions->GetBufferSize = sisGetBufferSize;
+ functions->GetString = sisGetString;
+ functions->Finish = sisFinish;
+ functions->Flush = sisFlush;
+}
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