-/* $Id: xm_dd.c,v 1.37 2002/10/04 19:10:12 brianp Exp $ */
-
/*
* Mesa 3-D graphics library
- * Version: 4.0.3
+ * Version: 6.3
*
- * Copyright (C) 1999-2002 Brian Paul All Rights Reserved.
+ * Copyright (C) 1999-2004 Brian Paul 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"),
* 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/extras/Mesa/src/X/xm_dd.c,v 1.2 2002/02/26 23:37:31 tsi Exp $ */
+
#include "glxheader.h"
+#include "bufferobj.h"
+#include "buffers.h"
#include "context.h"
#include "colormac.h"
#include "depth.h"
#include "drawpix.h"
#include "extensions.h"
#include "macros.h"
-#include "mem.h"
+#include "image.h"
+#include "imports.h"
#include "mtypes.h"
#include "state.h"
+#include "texobj.h"
+#include "teximage.h"
#include "texstore.h"
#include "texformat.h"
#include "xmesaP.h"
#include "array_cache/acache.h"
-#include "swrast/s_context.h"
#include "swrast/swrast.h"
+#include "swrast/s_auxbuffer.h"
+#include "swrast/s_context.h"
#include "swrast/s_alphabuf.h"
#include "swrast_setup/swrast_setup.h"
#include "tnl/tnl.h"
#include "tnl/t_context.h"
-#include "tnl/t_pipeline.h"
+
+#ifdef XFree86Server
+#include <GL/glxtokens.h>
+#endif
+
+
+
+/*
+ * Dithering kernels and lookup tables.
+ */
+
+const int xmesa_kernel8[DITH_DY * DITH_DX] = {
+ 0 * MAXC, 8 * MAXC, 2 * MAXC, 10 * MAXC,
+ 12 * MAXC, 4 * MAXC, 14 * MAXC, 6 * MAXC,
+ 3 * MAXC, 11 * MAXC, 1 * MAXC, 9 * MAXC,
+ 15 * MAXC, 7 * MAXC, 13 * MAXC, 5 * MAXC,
+};
+
+const short xmesa_HPCR_DRGB[3][2][16] = {
+ {
+ { 16, -4, 1,-11, 14, -6, 3, -9, 15, -5, 2,-10, 13, -7, 4, -8},
+ {-15, 5, 0, 12,-13, 7, -2, 10,-14, 6, -1, 11,-12, 8, -3, 9}
+ },
+ {
+ {-11, 15, -7, 3, -8, 14, -4, 2,-10, 16, -6, 4, -9, 13, -5, 1},
+ { 12,-14, 8, -2, 9,-13, 5, -1, 11,-15, 7, -3, 10,-12, 6, 0}
+ },
+ {
+ { 6,-18, 26,-14, 2,-22, 30,-10, 8,-16, 28,-12, 4,-20, 32, -8},
+ { -4, 20,-24, 16, 0, 24,-28, 12, -6, 18,-26, 14, -2, 22,-30, 10}
+ }
+};
+
+const int xmesa_kernel1[16] = {
+ 0*47, 9*47, 4*47, 12*47, /* 47 = (255*3)/16 */
+ 6*47, 2*47, 14*47, 8*47,
+ 10*47, 1*47, 5*47, 11*47,
+ 7*47, 13*47, 3*47, 15*47
+};
/*
unsigned int winwidth, winheight;
#ifdef XFree86Server
/* XFree86 GLX renderer */
- winwidth = xmBuffer->frontbuffer->width;
- winheight = xmBuffer->frontbuffer->height;
+ winwidth = MIN2(xmBuffer->frontbuffer->width, MAX_WIDTH);
+ winheight = MIN2(xmBuffer->frontbuffer->height, MAX_HEIGHT);
#else
Window root;
int winx, winy;
_glthread_UNLOCK_MUTEX(_xmesa_lock);
#endif
- (void)kernel8; /* Muffle compiler */
-
*width = winwidth;
*height = winheight;
}
static void
-finish( GLcontext *ctx )
+finish_or_flush( GLcontext *ctx )
{
#ifdef XFree86Server
/* NOT_NEEDED */
#else
- const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
if (xmesa) {
_glthread_LOCK_MUTEX(_xmesa_lock);
XSync( xmesa->display, False );
}
-static void
-flush( GLcontext *ctx )
-{
-#ifdef XFree86Server
- /* NOT_NEEDED */
-#else
- const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
- if (xmesa) {
- _glthread_LOCK_MUTEX(_xmesa_lock);
- XFlush( xmesa->display );
- _glthread_UNLOCK_MUTEX(_xmesa_lock);
- }
-#endif
-}
-
-
/*
* This chooses the color buffer for reading and writing spans, points,
* lines, and triangles.
*/
-static void
-set_buffer( GLcontext *ctx, GLframebuffer *buffer, GLenum mode )
+void
+xmesa_set_buffer( GLcontext *ctx, GLframebuffer *buffer, GLuint bufferBit )
{
/* We can make this cast since the XMesaBuffer wraps GLframebuffer.
* GLframebuffer is the first member in a XMesaBuffer struct.
*/
XMesaBuffer target = (XMesaBuffer) buffer;
- const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
/* This assignment tells the span/point/line/triangle functions
* which XMesaBuffer to use.
/*
* Now determine front vs back color buffer.
*/
- if (mode == GL_FRONT_LEFT) {
+ if (bufferBit == DD_FRONT_LEFT_BIT) {
target->buffer = target->frontbuffer;
+ xmesa_update_span_funcs(ctx);
}
- else if (mode == GL_BACK_LEFT) {
+ else if (bufferBit == DD_BACK_LEFT_BIT) {
ASSERT(target->db_state);
if (target->backpixmap) {
- /* back buffer is a pixmape */
- target->buffer = target->backpixmap;
+ /* back buffer is a pixmap */
+ target->buffer = (XMesaDrawable) target->backpixmap;
}
else if (target->backimage) {
/* back buffer is an XImage */
/* No back buffer!!!! Must be out of memory, use front buffer */
target->buffer = target->frontbuffer;
}
+ xmesa_update_span_funcs(ctx);
}
+ else if (bufferBit & (DD_AUX0_BIT | DD_AUX1_BIT | DD_AUX2_BIT | DD_AUX3_BIT)) {
+ _swrast_use_aux_buffer(ctx, buffer, bufferBit);
+ }
else {
- _mesa_problem(ctx, "invalid buffer in set_buffer() in xmesa2.c");
+ _mesa_problem(ctx, "invalid buffer 0x%x in set_buffer() in xm_dd.c");
return;
}
- xmesa_update_span_funcs(ctx);
}
static void
clear_index( GLcontext *ctx, GLuint index )
{
- const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
xmesa->clearpixel = (unsigned long) index;
XMesaSetForeground( xmesa->display, xmesa->xm_draw_buffer->cleargc,
(unsigned long) index );
static void
clear_color( GLcontext *ctx, const GLfloat color[4] )
{
- const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
CLAMPED_FLOAT_TO_UBYTE(xmesa->clearcolor[0], color[0]);
CLAMPED_FLOAT_TO_UBYTE(xmesa->clearcolor[1], color[1]);
CLAMPED_FLOAT_TO_UBYTE(xmesa->clearcolor[2], color[2]);
static void
index_mask( GLcontext *ctx, GLuint mask )
{
- const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
if (xmesa->xm_draw_buffer->buffer != XIMAGE) {
unsigned long m;
if (mask==0xffffffff) {
color_mask(GLcontext *ctx,
GLboolean rmask, GLboolean gmask, GLboolean bmask, GLboolean amask)
{
- const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
- int xclass = GET_VISUAL_CLASS(xmesa->xm_visual);
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ const int xclass = xmesa->xm_visual->mesa_visual.visualType;
(void) amask;
- if (xclass == TrueColor || xclass == DirectColor) {
+ if (xclass == GLX_TRUE_COLOR || xclass == GLX_DIRECT_COLOR) {
unsigned long m;
if (rmask && gmask && bmask) {
m = ((unsigned long)~0L);
if (bmask) m |= GET_BLUEMASK(xmesa->xm_visual);
}
XMesaSetPlaneMask( xmesa->display, xmesa->xm_draw_buffer->cleargc, m );
+ XMesaSetPlaneMask( xmesa->display, xmesa->xm_draw_buffer->gc, m );
}
}
clear_front_pixmap( GLcontext *ctx, GLboolean all,
GLint x, GLint y, GLint width, GLint height )
{
- const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
if (all) {
XMesaFillRectangle( xmesa->display, xmesa->xm_draw_buffer->frontbuffer,
xmesa->xm_draw_buffer->cleargc,
0, 0,
- xmesa->xm_draw_buffer->width+1,
- xmesa->xm_draw_buffer->height+1 );
+ xmesa->xm_draw_buffer->mesa_buffer.Width + 1,
+ xmesa->xm_draw_buffer->mesa_buffer.Height + 1 );
}
else {
XMesaFillRectangle( xmesa->display, xmesa->xm_draw_buffer->frontbuffer,
xmesa->xm_draw_buffer->cleargc,
- x, xmesa->xm_draw_buffer->height - y - height,
+ x, xmesa->xm_draw_buffer->mesa_buffer.Height - y - height,
width, height );
}
}
clear_back_pixmap( GLcontext *ctx, GLboolean all,
GLint x, GLint y, GLint width, GLint height )
{
- const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
if (all) {
XMesaFillRectangle( xmesa->display, xmesa->xm_draw_buffer->backpixmap,
xmesa->xm_draw_buffer->cleargc,
0, 0,
- xmesa->xm_draw_buffer->width+1,
- xmesa->xm_draw_buffer->height+1 );
+ xmesa->xm_draw_buffer->mesa_buffer.Width + 1,
+ xmesa->xm_draw_buffer->mesa_buffer.Height + 1 );
}
else {
XMesaFillRectangle( xmesa->display, xmesa->xm_draw_buffer->backpixmap,
xmesa->xm_draw_buffer->cleargc,
- x, xmesa->xm_draw_buffer->height - y - height,
+ x, xmesa->xm_draw_buffer->mesa_buffer.Height - y - height,
width, height );
}
}
clear_8bit_ximage( GLcontext *ctx, GLboolean all,
GLint x, GLint y, GLint width, GLint height )
{
- const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
if (all) {
size_t n = xmesa->xm_draw_buffer->backimage->bytes_per_line
* xmesa->xm_draw_buffer->backimage->height;
clear_HPCR_ximage( GLcontext *ctx, GLboolean all,
GLint x, GLint y, GLint width, GLint height )
{
- const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
if (all) {
GLint i, c16 = (xmesa->xm_draw_buffer->backimage->bytes_per_line>>4)<<4;
GLubyte *ptr = (GLubyte *)xmesa->xm_draw_buffer->backimage->data;
clear_16bit_ximage( GLcontext *ctx, GLboolean all,
GLint x, GLint y, GLint width, GLint height )
{
- const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
register GLuint pixel = (GLuint) xmesa->clearpixel;
if (xmesa->swapbytes) {
pixel = ((pixel >> 8) & 0x00ff) | ((pixel << 8) & 0xff00);
if ((pixel & 0xff) == ((pixel >> 8) & 0xff)) {
/* low and high bytes are equal so use memset() */
n = xmesa->xm_draw_buffer->backimage->bytes_per_line
- * xmesa->xm_draw_buffer->height;
+ * xmesa->xm_draw_buffer->mesa_buffer.Height;
MEMSET( ptr4, pixel & 0xff, n );
}
else {
pixel = pixel | (pixel<<16);
n = xmesa->xm_draw_buffer->backimage->bytes_per_line
- * xmesa->xm_draw_buffer->height / 4;
+ * xmesa->xm_draw_buffer->mesa_buffer.Height / 4;
do {
*ptr4++ = pixel;
n--;
} while (n!=0);
if ((xmesa->xm_draw_buffer->backimage->bytes_per_line *
- xmesa->xm_draw_buffer->height) & 0x2)
+ xmesa->xm_draw_buffer->mesa_buffer.Height) & 0x2)
*(GLushort *)ptr4 = pixel & 0xffff;
}
}
clear_24bit_ximage( GLcontext *ctx, GLboolean all,
GLint x, GLint y, GLint width, GLint height )
{
- const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
const GLubyte r = xmesa->clearcolor[0];
const GLubyte g = xmesa->clearcolor[1];
const GLubyte b = xmesa->clearcolor[2];
+#if 0 /* See below */
register GLuint clearPixel;
if (xmesa->swapbytes) {
clearPixel = (b << 16) | (g << 8) | r;
else {
clearPixel = (r << 16) | (g << 8) | b;
}
+#endif
if (all) {
if (r==g && g==b) {
/* same value for all three components (gray) */
- const GLint w3 = xmesa->xm_draw_buffer->width * 3;
- const GLint h = xmesa->xm_draw_buffer->height;
+ const GLint w3 = xmesa->xm_draw_buffer->mesa_buffer.Width * 3;
+ const GLint h = xmesa->xm_draw_buffer->mesa_buffer.Height;
GLint i;
for (i = 0; i < h; i++) {
bgr_t *ptr3 = PIXELADDR3(xmesa->xm_draw_buffer, 0, i);
}
else {
/* the usual case */
- const GLint w = xmesa->xm_draw_buffer->width;
- const GLint h = xmesa->xm_draw_buffer->height;
+ const GLint w = xmesa->xm_draw_buffer->mesa_buffer.Width;
+ const GLint h = xmesa->xm_draw_buffer->mesa_buffer.Height;
GLint i, j;
for (i = 0; i < h; i++) {
bgr_t *ptr3 = PIXELADDR3(xmesa->xm_draw_buffer, 0, i);
clear_32bit_ximage( GLcontext *ctx, GLboolean all,
GLint x, GLint y, GLint width, GLint height )
{
- const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
register GLuint pixel = (GLuint) xmesa->clearpixel;
if (xmesa->swapbytes) {
pixel = ((pixel >> 24) & 0x000000ff)
| ((pixel << 24) & 0xff000000);
}
if (all) {
- register GLint n = xmesa->xm_draw_buffer->width * xmesa->xm_draw_buffer->height;
+ register GLint n = xmesa->xm_draw_buffer->mesa_buffer.Width
+ * xmesa->xm_draw_buffer->mesa_buffer.Height;
register GLuint *ptr4 = (GLuint *) xmesa->xm_draw_buffer->backimage->data;
if (pixel==0) {
MEMSET( ptr4, pixel, 4*n );
clear_nbit_ximage( GLcontext *ctx, GLboolean all,
GLint x, GLint y, GLint width, GLint height )
{
- const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
XMesaImage *img = xmesa->xm_draw_buffer->backimage;
- if (all) {
- register int i, j;
- width = xmesa->xm_draw_buffer->width;
- height = xmesa->xm_draw_buffer->height;
- for (j=0;j<height;j++) {
- for (i=0;i<width;i++) {
- XMesaPutPixel( img, i, j, xmesa->clearpixel );
- }
- }
- }
- else {
- /* TODO: optimize this */
- register int i, j;
- y = FLIP(xmesa->xm_draw_buffer, y);
- for (j=0;j<height;j++) {
- for (i=0;i<width;i++) {
- XMesaPutPixel( img, x+i, y-j, xmesa->clearpixel );
- }
+ register int i, j;
+
+ /* We can ignore 'all' here - x, y, width, height are always right */
+ (void) all;
+
+ /* TODO: optimize this */
+ y = FLIP(xmesa->xm_draw_buffer, y);
+ for (j = 0; j < height; j++) {
+ for (i = 0; i < width; i++) {
+ XMesaPutPixel(img, x+i, y-j, xmesa->clearpixel);
}
}
}
clear_buffers( GLcontext *ctx, GLbitfield mask,
GLboolean all, GLint x, GLint y, GLint width, GLint height )
{
- const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
const GLuint *colorMask = (GLuint *) &ctx->Color.ColorMask;
if ((mask & (DD_FRONT_LEFT_BIT | DD_BACK_LEFT_BIT)) &&
xmesa->xm_draw_buffer->mesa_buffer.UseSoftwareAlphaBuffers &&
ctx->Color.ColorMask[ACOMP]) {
- _mesa_clear_alpha_buffers(ctx);
+ _swrast_clear_alpha_buffers(ctx);
}
/* we can't handle color or index masking */
* When we detect that the user has resized the window this function will
* get called. Here we'll reallocate the back buffer, depth buffer,
* stencil buffer etc. to match the new window size.
+ * The buffer->Width and buffer->Height values will indicate the new size.
*/
void
xmesa_resize_buffers( GLframebuffer *buffer )
*/
XMesaBuffer xmBuffer = (XMesaBuffer) buffer;
- xmBuffer->width = buffer->Width;
- xmBuffer->height = buffer->Height;
xmesa_alloc_back_buffer( xmBuffer );
/* Needed by FLIP macro */
_swrast_alloc_buffers( buffer );
}
-#if 0
-/*
+
+#ifndef XFree86Server
+/* XXX this was never tested in the Xserver environment */
+
+/**
* This function implements glDrawPixels() with an XPutImage call when
* drawing to the front buffer (X Window drawable).
* The image format must be GL_BGRA to match the PF_8R8G8B pixel format.
- * XXX top/bottom edge clipping is broken!
*/
-static GLboolean
-drawpixels_8R8G8B( GLcontext *ctx,
- GLint x, GLint y, GLsizei width, GLsizei height,
- GLenum format, GLenum type,
- const struct gl_pixelstore_attrib *unpack,
- const GLvoid *pixels )
+static void
+xmesa_DrawPixels_8R8G8B( GLcontext *ctx,
+ GLint x, GLint y, GLsizei width, GLsizei height,
+ GLenum format, GLenum type,
+ const struct gl_pixelstore_attrib *unpack,
+ const GLvoid *pixels )
{
- const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ const SWcontext *swrast = SWRAST_CONTEXT( ctx );
XMesaDisplay *dpy = xmesa->xm_visual->display;
- XMesaDrawable buffer = xmesa->xm_draw_buffer->buffer;
- XMesaGC gc = xmesa->xm_draw_buffer->gc;
- assert(dpy);
- assert(buffer);
- assert(gc);
-
- /* XXX also check for pixel scale/bias/lookup/zooming! */
- if (format == GL_BGRA && type == GL_UNSIGNED_BYTE) {
+ const XMesaDrawable buffer = xmesa->xm_draw_buffer->buffer;
+ const XMesaGC gc = xmesa->xm_draw_buffer->gc;
+
+ ASSERT(dpy);
+ ASSERT(gc);
+ ASSERT(xmesa->xm_visual->dithered_pf == PF_8R8G8B);
+ ASSERT(xmesa->xm_visual->undithered_pf == PF_8R8G8B);
+
+ if (swrast->NewState)
+ _swrast_validate_derived( ctx );
+
+ if (buffer && /* buffer != 0 means it's a Window or Pixmap */
+ format == GL_BGRA &&
+ type == GL_UNSIGNED_BYTE &&
+ (swrast->_RasterMask & ~CLIP_BIT) == 0 && /* no blend, z-test, etc */
+ ctx->_ImageTransferState == 0 && /* no color tables, scale/bias, etc */
+ ctx->Pixel.ZoomX == 1.0 && /* no zooming */
+ ctx->Pixel.ZoomY == 1.0) {
int dstX = x;
int dstY = y;
int w = width;
int h = height;
int srcX = unpack->SkipPixels;
int srcY = unpack->SkipRows;
- if (_mesa_clip_pixelrect(ctx, &dstX, &dstY, &w, &h, &srcX, &srcY)) {
+ int rowLength = unpack->RowLength ? unpack->RowLength : width;
+
+ if (unpack->BufferObj->Name) {
+ /* unpack from PBO */
+ GLubyte *buf;
+ if (!_mesa_validate_pbo_access(2, unpack, width, height, 1,
+ format, type, pixels)) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glDrawPixels(invalid PBO access)");
+ return;
+ }
+ buf = (GLubyte *) ctx->Driver.MapBuffer(ctx,
+ GL_PIXEL_UNPACK_BUFFER_EXT,
+ GL_READ_ONLY_ARB,
+ unpack->BufferObj);
+ if (!buf) {
+ /* buffer is already mapped - that's an error */
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glDrawPixels(PBO is mapped)");
+ return;
+ }
+ pixels = ADD_POINTERS(buf, pixels);
+ }
+
+ if (_mesa_clip_drawpixels(ctx, &dstX, &dstY, &w, &h, &srcX, &srcY)) {
+ /* This is a little tricky since all coordinates up to now have
+ * been in the OpenGL bottom-to-top orientation. X is top-to-bottom
+ * so we have to carefully compute the Y coordinates/addresses here.
+ */
XMesaImage ximage;
MEMSET(&ximage, 0, sizeof(XMesaImage));
ximage.width = width;
ximage.height = height;
ximage.format = ZPixmap;
- ximage.data = (char *) pixels + (height - 1) * width * 4;
+ ximage.data = (char *) pixels
+ + ((srcY + h - 1) * rowLength + srcX) * 4;
ximage.byte_order = LSBFirst;
ximage.bitmap_unit = 32;
ximage.bitmap_bit_order = LSBFirst;
ximage.bitmap_pad = 32;
ximage.depth = 24;
- ximage.bytes_per_line = -width * 4;
+ ximage.bytes_per_line = -rowLength * 4; /* negative to flip image */
ximage.bits_per_pixel = 32;
- ximage.red_mask = 0xff0000;
- ximage.green_mask = 0x00ff00;
- ximage.blue_mask = 0x0000ff;
- dstY = FLIP(xmesa->xm_draw_buffer,dstY) - height + 1;
- XPutImage(dpy, buffer, gc, &ximage, srcX, srcY, dstX, dstY, w, h);
- return GL_TRUE;
+ /* it seems we don't need to set the ximage.red/green/blue_mask fields */
+ /* flip Y axis for dest position */
+ dstY = FLIP(xmesa->xm_draw_buffer, dstY) - h + 1;
+ XPutImage(dpy, buffer, gc, &ximage, 0, 0, dstX, dstY, w, h);
+ }
+
+ if (unpack->BufferObj->Name) {
+ ctx->Driver.UnmapBuffer(ctx, GL_PIXEL_UNPACK_BUFFER_EXT,
+ unpack->BufferObj);
}
}
- return GL_FALSE;
+ else {
+ /* software fallback */
+ _swrast_DrawPixels(ctx, x, y, width, height,
+ format, type, unpack, pixels);
+ }
}
-#endif
+/**
+ * This function implements glDrawPixels() with an XPutImage call when
+ * drawing to the front buffer (X Window drawable). The image format
+ * must be GL_RGB and image type must be GL_UNSIGNED_SHORT_5_6_5 to
+ * match the PF_5R6G5B pixel format.
+ */
+static void
+xmesa_DrawPixels_5R6G5B( GLcontext *ctx,
+ GLint x, GLint y, GLsizei width, GLsizei height,
+ GLenum format, GLenum type,
+ const struct gl_pixelstore_attrib *unpack,
+ const GLvoid *pixels )
+{
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ const SWcontext *swrast = SWRAST_CONTEXT( ctx );
+ XMesaDisplay *dpy = xmesa->xm_visual->display;
+ const XMesaDrawable buffer = xmesa->xm_draw_buffer->buffer;
+ const XMesaGC gc = xmesa->xm_draw_buffer->gc;
+
+ ASSERT(dpy);
+ ASSERT(gc);
+ ASSERT(xmesa->xm_visual->undithered_pf == PF_5R6G5B);
+
+ if (swrast->NewState)
+ _swrast_validate_derived( ctx );
+
+ if (buffer && /* buffer != 0 means it's a Window or Pixmap */
+ format == GL_RGB &&
+ type == GL_UNSIGNED_SHORT_5_6_5 &&
+ !ctx->Color.DitherFlag && /* no dithering */
+ (swrast->_RasterMask & ~CLIP_BIT) == 0 && /* no blend, z-test, etc */
+ ctx->_ImageTransferState == 0 && /* no color tables, scale/bias, etc */
+ ctx->Pixel.ZoomX == 1.0 && /* no zooming */
+ ctx->Pixel.ZoomY == 1.0) {
+ int dstX = x;
+ int dstY = y;
+ int w = width;
+ int h = height;
+ int srcX = unpack->SkipPixels;
+ int srcY = unpack->SkipRows;
+ int rowLength = unpack->RowLength ? unpack->RowLength : width;
+
+ if (unpack->BufferObj->Name) {
+ /* unpack from PBO */
+ GLubyte *buf;
+ if (!_mesa_validate_pbo_access(2, unpack, width, height, 1,
+ format, type, pixels)) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glDrawPixels(invalid PBO access)");
+ return;
+ }
+ buf = (GLubyte *) ctx->Driver.MapBuffer(ctx,
+ GL_PIXEL_UNPACK_BUFFER_EXT,
+ GL_READ_ONLY_ARB,
+ unpack->BufferObj);
+ if (!buf) {
+ /* buffer is already mapped - that's an error */
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glDrawPixels(PBO is mapped)");
+ return;
+ }
+ pixels = ADD_POINTERS(buf, pixels);
+ }
+
+ if (_mesa_clip_drawpixels(ctx, &dstX, &dstY, &w, &h, &srcX, &srcY)) {
+ /* This is a little tricky since all coordinates up to now have
+ * been in the OpenGL bottom-to-top orientation. X is top-to-bottom
+ * so we have to carefully compute the Y coordinates/addresses here.
+ */
+ XMesaImage ximage;
+ MEMSET(&ximage, 0, sizeof(XMesaImage));
+ ximage.width = width;
+ ximage.height = height;
+ ximage.format = ZPixmap;
+ ximage.data = (char *) pixels
+ + ((srcY + h - 1) * rowLength + srcX) * 2;
+ ximage.byte_order = LSBFirst;
+ ximage.bitmap_unit = 16;
+ ximage.bitmap_bit_order = LSBFirst;
+ ximage.bitmap_pad = 16;
+ ximage.depth = 16;
+ ximage.bytes_per_line = -rowLength * 2; /* negative to flip image */
+ ximage.bits_per_pixel = 16;
+ /* it seems we don't need to set the ximage.red/green/blue_mask fields */
+ /* flip Y axis for dest position */
+ dstY = FLIP(xmesa->xm_draw_buffer, dstY) - h + 1;
+ XPutImage(dpy, buffer, gc, &ximage, 0, 0, dstX, dstY, w, h);
+ }
+
+ if (unpack->BufferObj->Name) {
+ ctx->Driver.UnmapBuffer(ctx, GL_PIXEL_UNPACK_BUFFER_EXT,
+ unpack->BufferObj);
+ }
+ }
+ else {
+ /* software fallback */
+ _swrast_DrawPixels(ctx, x, y, width, height,
+ format, type, unpack, pixels);
+ }
+}
+
+
+
+/**
+ * Implement glCopyPixels for the front color buffer (or back buffer Pixmap)
+ * for the color buffer. Don't support zooming, pixel transfer, etc.
+ * We do support copying from one window to another, ala glXMakeCurrentRead.
+ */
+static void
+xmesa_CopyPixels( GLcontext *ctx,
+ GLint srcx, GLint srcy, GLsizei width, GLsizei height,
+ GLint destx, GLint desty, GLenum type )
+{
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ const SWcontext *swrast = SWRAST_CONTEXT( ctx );
+ XMesaDisplay *dpy = xmesa->xm_visual->display;
+ const XMesaDrawable drawBuffer = xmesa->xm_draw_buffer->buffer;
+ const XMesaDrawable readBuffer = xmesa->xm_read_buffer->buffer;
+ const XMesaGC gc = xmesa->xm_draw_buffer->gc;
+
+ ASSERT(dpy);
+ ASSERT(gc);
+
+ if (swrast->NewState)
+ _swrast_validate_derived( ctx );
+
+ if (ctx->Color.DrawBuffer[0] == GL_FRONT &&
+ ctx->Pixel.ReadBuffer == GL_FRONT &&
+ drawBuffer && /* buffer != 0 means it's a Window or Pixmap */
+ readBuffer &&
+ type == GL_COLOR &&
+ (swrast->_RasterMask & ~CLIP_BIT) == 0 && /* no blend, z-test, etc */
+ ctx->_ImageTransferState == 0 && /* no color tables, scale/bias, etc */
+ ctx->Pixel.ZoomX == 1.0 && /* no zooming */
+ ctx->Pixel.ZoomY == 1.0) {
+ /* Note: we don't do any special clipping work here. We could,
+ * but X will do it for us.
+ */
+ srcy = FLIP(xmesa->xm_read_buffer, srcy) - height + 1;
+ desty = FLIP(xmesa->xm_draw_buffer, desty) - height + 1;
+ XCopyArea(dpy, readBuffer, drawBuffer, gc,
+ srcx, srcy, width, height, destx, desty);
+ }
+ else {
+ _swrast_CopyPixels(ctx, srcx, srcy, width, height, destx, desty, type );
+ }
+}
+#endif /* XFree86Server */
+
+
+
+/*
+ * Every driver should implement a GetString function in order to
+ * return a meaningful GL_RENDERER string.
+ */
static const GLubyte *
get_string( GLcontext *ctx, GLenum name )
{
}
+/*
+ * We implement the glEnable function only because we care about
+ * dither enable/disable.
+ */
static void
enable( GLcontext *ctx, GLenum pname, GLboolean state )
{
- const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
switch (pname) {
case GL_DITHER:
void xmesa_update_state( GLcontext *ctx, GLuint new_state )
{
- const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
/* Propogate statechange information to swrast and swrast_setup
* modules. The X11 driver has no internal GL-dependent state.
break;
}
- xmesa_update_span_funcs(ctx);
+ if (ctx->Color._DrawDestMask[0] & (DD_FRONT_LEFT_BIT | DD_BACK_LEFT_BIT)) {
+ xmesa_update_span_funcs(ctx);
+ }
}
-/* Setup pointers and other driver state that is constant for the life
- * of a context.
+/**
+ * Called via ctx->Driver.TestProxyTeximage(). Normally, we'd just use
+ * the _mesa_test_proxy_teximage() fallback function, but we're going to
+ * special-case the 3D texture case to allow textures up to 512x512x32
+ * texels.
*/
-void xmesa_init_pointers( GLcontext *ctx )
+static GLboolean
+test_proxy_teximage(GLcontext *ctx, GLenum target, GLint level,
+ GLint internalFormat, GLenum format, GLenum type,
+ GLint width, GLint height, GLint depth, GLint border)
{
- TNLcontext *tnl;
- struct swrast_device_driver *dd = _swrast_GetDeviceDriverReference( ctx );
-
- ctx->Driver.GetString = get_string;
- ctx->Driver.GetBufferSize = get_buffer_size;
- ctx->Driver.Flush = flush;
- ctx->Driver.Finish = finish;
-
- /* Software rasterizer pixel paths:
- */
- ctx->Driver.Accum = _swrast_Accum;
- ctx->Driver.Bitmap = _swrast_Bitmap;
- ctx->Driver.Clear = clear_buffers;
- ctx->Driver.ResizeBuffers = xmesa_resize_buffers;
- ctx->Driver.CopyPixels = _swrast_CopyPixels;
- ctx->Driver.DrawPixels = _swrast_DrawPixels;
- ctx->Driver.ReadPixels = _swrast_ReadPixels;
- ctx->Driver.DrawBuffer = _swrast_DrawBuffer;
-
- /* Software texture functions:
- */
- ctx->Driver.ChooseTextureFormat = _mesa_choose_tex_format;
- ctx->Driver.TexImage1D = _mesa_store_teximage1d;
- ctx->Driver.TexImage2D = _mesa_store_teximage2d;
- ctx->Driver.TexImage3D = _mesa_store_teximage3d;
- ctx->Driver.TexSubImage1D = _mesa_store_texsubimage1d;
- ctx->Driver.TexSubImage2D = _mesa_store_texsubimage2d;
- ctx->Driver.TexSubImage3D = _mesa_store_texsubimage3d;
- ctx->Driver.TestProxyTexImage = _mesa_test_proxy_teximage;
-
- ctx->Driver.CopyTexImage1D = _swrast_copy_teximage1d;
- ctx->Driver.CopyTexImage2D = _swrast_copy_teximage2d;
- ctx->Driver.CopyTexSubImage1D = _swrast_copy_texsubimage1d;
- ctx->Driver.CopyTexSubImage2D = _swrast_copy_texsubimage2d;
- ctx->Driver.CopyTexSubImage3D = _swrast_copy_texsubimage3d;
-
- ctx->Driver.CompressedTexImage1D = _mesa_store_compressed_teximage1d;
- ctx->Driver.CompressedTexImage2D = _mesa_store_compressed_teximage2d;
- ctx->Driver.CompressedTexImage3D = _mesa_store_compressed_teximage3d;
- ctx->Driver.CompressedTexSubImage1D = _mesa_store_compressed_texsubimage1d;
- ctx->Driver.CompressedTexSubImage2D = _mesa_store_compressed_texsubimage2d;
- ctx->Driver.CompressedTexSubImage3D = _mesa_store_compressed_texsubimage3d;
-
- /* Swrast hooks for imaging extensions:
- */
- ctx->Driver.CopyColorTable = _swrast_CopyColorTable;
- ctx->Driver.CopyColorSubTable = _swrast_CopyColorSubTable;
- ctx->Driver.CopyConvolutionFilter1D = _swrast_CopyConvolutionFilter1D;
- ctx->Driver.CopyConvolutionFilter2D = _swrast_CopyConvolutionFilter2D;
-
-
- /* Statechange callbacks:
- */
- ctx->Driver.ClearIndex = clear_index;
- ctx->Driver.ClearColor = clear_color;
- ctx->Driver.IndexMask = index_mask;
- ctx->Driver.ColorMask = color_mask;
- ctx->Driver.Enable = enable;
+ if (target == GL_PROXY_TEXTURE_3D) {
+ /* special case for 3D textures */
+ if (width * height * depth > 512 * 512 * 64 ||
+ width < 2 * border ||
+ (!ctx->Extensions.ARB_texture_non_power_of_two &&
+ _mesa_bitcount(width - 2 * border) != 1) ||
+ height < 2 * border ||
+ (!ctx->Extensions.ARB_texture_non_power_of_two &&
+ _mesa_bitcount(height - 2 * border) != 1) ||
+ depth < 2 * border ||
+ (!ctx->Extensions.ARB_texture_non_power_of_two &&
+ _mesa_bitcount(depth - 2 * border) != 1)) {
+ /* Bad size, or too many texels */
+ return GL_FALSE;
+ }
+ return GL_TRUE;
+ }
+ else {
+ /* use the fallback routine for 1D, 2D, cube and rect targets */
+ return _mesa_test_proxy_teximage(ctx, target, level, internalFormat,
+ format, type, width, height, depth,
+ border);
+ }
+}
- /* Initialize the TNL driver interface:
- */
- tnl = TNL_CONTEXT(ctx);
- tnl->Driver.RunPipeline = _tnl_run_pipeline;
-
- dd->SetBuffer = set_buffer;
+/**
+ * In SW, we don't really compress GL_COMPRESSED_RGB[A] textures!
+ */
+static const struct gl_texture_format *
+choose_tex_format( GLcontext *ctx, GLint internalFormat,
+ GLenum format, GLenum type )
+{
+ switch (internalFormat) {
+ case GL_COMPRESSED_RGB_ARB:
+ return &_mesa_texformat_rgb;
+ case GL_COMPRESSED_RGBA_ARB:
+ return &_mesa_texformat_rgba;
+ default:
+ return _mesa_choose_tex_format(ctx, internalFormat, format, type);
+ }
+}
- /* Install swsetup for tnl->Driver.Render.*:
- */
- _swsetup_Wakeup(ctx);
- (void) DitherValues; /* silenced unused var warning */
+/**
+ * Called by glViewport.
+ * This is a good time for us to poll the current X window size and adjust
+ * our ancillary (back color, depth, stencil, etc) buffers to match the
+ * current window size. Remember, we have no opportunity to respond to
+ * conventional X Resize/StructureNotify events since the X driver has no
+ * event loop. Thus, we poll.
+ * Note that this trick isn't fool-proof. If the application never calls
+ * glViewport, our notion of the current window size may be incorrect.
+ */
+static void
+xmesa_viewport(GLcontext *ctx, GLint x, GLint y, GLsizei w, GLsizei h)
+{
+ _mesa_ResizeBuffersMESA();
}
-
+/**
+ * Initialize the device driver function table with the functions
+ * we implement in this driver.
+ */
+void
+xmesa_init_driver_functions( XMesaVisual xmvisual,
+ struct dd_function_table *driver )
+{
+ driver->GetString = get_string;
+ driver->UpdateState = xmesa_update_state;
+ driver->GetBufferSize = get_buffer_size;
+ driver->Flush = finish_or_flush;
+ driver->Finish = finish_or_flush;
+ driver->ClearIndex = clear_index;
+ driver->ClearColor = clear_color;
+ driver->IndexMask = index_mask;
+ driver->ColorMask = color_mask;
+ driver->Enable = enable;
+ driver->Clear = clear_buffers;
+ driver->ResizeBuffers = xmesa_resize_buffers;
+ driver->Viewport = xmesa_viewport;
+#ifndef XFree86Server
+ driver->CopyPixels = xmesa_CopyPixels;
+ if (xmvisual->undithered_pf == PF_8R8G8B &&
+ xmvisual->dithered_pf == PF_8R8G8B) {
+ driver->DrawPixels = xmesa_DrawPixels_8R8G8B;
+ }
+ else if (xmvisual->undithered_pf == PF_5R6G5B) {
+ driver->DrawPixels = xmesa_DrawPixels_5R6G5B;
+ }
+#endif
+ driver->TestProxyTexImage = test_proxy_teximage;
+#if SWTC
+ driver->ChooseTextureFormat = choose_tex_format;
+#else
+ (void) choose_tex_format;
+#endif
+}
#define XMESA_NEW_POINT (_NEW_POINT | \
void xmesa_register_swrast_functions( GLcontext *ctx )
{
SWcontext *swrast = SWRAST_CONTEXT( ctx );
+ struct swrast_device_driver *dd = _swrast_GetDeviceDriverReference(ctx);
+
+ dd->SetBuffer = xmesa_set_buffer;
swrast->choose_point = xmesa_choose_point;
swrast->choose_line = xmesa_choose_line;
projects / mesa.git / blobdiff