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fixed pixelpiped DrawBitmap / DrawPixels (clipping was upside-down)

This commit is contained in:
Daniel Borca 2004-07-23 08:59:09 +00:00
parent 1635040a9e
commit a48edcf69c
1 changed files with 28 additions and 31 deletions
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59
src/mesa/drivers/glide/fxdd.c
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@ -462,22 +462,19 @@ fxDDDrawBitmap2 (GLcontext *ctx, GLint px, GLint py,
struct gl_pixelstore_attrib scissoredUnpack;
/* check if there's any raster operations enabled which we can't handle */
if ((swrast->_RasterMask & (ALPHATEST_BIT |
if (swrast->_RasterMask & (ALPHATEST_BIT |
/*BLEND_BIT |*/ /* blending ok, through pixpipe */
DEPTH_BIT | /* could be done with RGB:DEPTH */
FOG_BIT | /* could be done with RGB:DEPTH */
LOGIC_OP_BIT |
/*CLIP_BIT |*/ /* clipping ok, below */
STENCIL_BIT |
/*MASKING_BIT |*/ /* masking ok, test follows */
MASKING_BIT |
ALPHABUF_BIT | /* nope! see 565 span kludge */
MULTI_DRAW_BIT |
OCCLUSION_BIT | /* nope! at least not yet */
TEXTURE_BIT |
FRAGPROG_BIT))
||
((swrast->_RasterMask & MASKING_BIT) /*&& (ctx->Visual.greenBits != 8)*/ && (ctx->Visual.greenBits != 5))
) {
FRAGPROG_BIT)) {
_swrast_Bitmap(ctx, px, py, width, height, unpack, bitmap);
return;
}
@ -544,14 +541,14 @@ fxDDDrawBitmap2 (GLcontext *ctx, GLint px, GLint py,
if (!grLfbLock(GR_LFB_WRITE_ONLY,
fxMesa->currentFB,
mode,
GR_ORIGIN_UPPER_LEFT, FXTRUE, &info)) {
GR_ORIGIN_LOWER_LEFT, FXTRUE, &info)) {
_swrast_Bitmap(ctx, px, py, width, height, unpack, bitmap);
return;
}
{
const GLint winX = 0;
const GLint winY = fxMesa->height - 1;
const GLint winY = 0;
/* The dest stride depends on the hardware and whether we're drawing
* to the front or back buffer. This compile-time test seems to do
* the job for now.
@ -561,7 +558,7 @@ fxDDDrawBitmap2 (GLcontext *ctx, GLint px, GLint py,
GLint row;
/* compute dest address of bottom-left pixel in bitmap */
GLushort *dst = (GLushort *) info.lfbPtr
+ (winY - py) * dstStride + (winX + px);
+ (winY + py) * dstStride + (winX + px);
for (row = 0; row < height; row++) {
const GLubyte *src =
@ -607,7 +604,7 @@ fxDDDrawBitmap2 (GLcontext *ctx, GLint px, GLint py,
if (mask != 128)
src++;
}
dst -= dstStride;
dst += dstStride;
}
}
@ -702,14 +699,14 @@ fxDDDrawBitmap4 (GLcontext *ctx, GLint px, GLint py,
if (!grLfbLock(GR_LFB_WRITE_ONLY,
fxMesa->currentFB,
GR_LFBWRITEMODE_8888,
GR_ORIGIN_UPPER_LEFT, FXTRUE, &info)) {
GR_ORIGIN_LOWER_LEFT, FXTRUE, &info)) {
_swrast_Bitmap(ctx, px, py, width, height, unpack, bitmap);
return;
}
{
const GLint winX = 0;
const GLint winY = fxMesa->height - 1;
const GLint winY = 0;
/* The dest stride depends on the hardware and whether we're drawing
* to the front or back buffer. This compile-time test seems to do
* the job for now.
@ -719,7 +716,7 @@ fxDDDrawBitmap4 (GLcontext *ctx, GLint px, GLint py,
GLint row;
/* compute dest address of bottom-left pixel in bitmap */
GLuint *dst = (GLuint *) info.lfbPtr
+ (winY - py) * dstStride + (winX + px);
+ (winY + py) * dstStride + (winX + px);
for (row = 0; row < height; row++) {
const GLubyte *src =
@ -765,7 +762,7 @@ fxDDDrawBitmap4 (GLcontext *ctx, GLint px, GLint py,
if (mask != 128)
src++;
}
dst -= dstStride;
dst += dstStride;
}
}
@ -1153,17 +1150,17 @@ fxDDDrawPixels8888 (GLcontext * ctx, GLint x, GLint y,
if (!grLfbLock(GR_LFB_WRITE_ONLY,
fxMesa->currentFB,
GR_LFBWRITEMODE_8888,
GR_ORIGIN_UPPER_LEFT, FXTRUE, &info)) {
GR_ORIGIN_LOWER_LEFT, FXTRUE, &info)) {
_swrast_DrawPixels(ctx, x, y, width, height, format, type, unpack, pixels);
return;
}
{
const GLint winX = 0;
const GLint winY = fxMesa->height - 1;
const GLint winY = 0;
const GLint dstStride = info.strideInBytes / 4; /* stride in GLuints */
GLuint *dst = (GLuint *) info.lfbPtr + (winY - y) * dstStride + (winX + x);
GLuint *dst = (GLuint *) info.lfbPtr + (winY + y) * dstStride + (winX + x);
const GLubyte *src = (GLubyte *)_mesa_image_address(unpack, pixels,
width, height, format,
type, 0, 0, 0);
@ -1175,7 +1172,7 @@ fxDDDrawPixels8888 (GLcontext * ctx, GLint x, GLint y,
GLint row;
for (row = 0; row < height; row++) {
MEMCPY(dst, src, widthInBytes);
dst -= dstStride;
dst += dstStride;
src += srcStride;
}
}
@ -1730,19 +1727,19 @@ fxSetupDDPointers(GLcontext * ctx)
ctx->Driver.DrawBuffer = fxDDSetDrawBuffer;
ctx->Driver.GetBufferSize = fxDDBufferSize;
switch (fxMesa->colDepth) {
case 15:
ctx->Driver.ReadPixels = fxDDReadPixels555;
ctx->Driver.Bitmap = fxDDDrawBitmap2;
break;
case 16:
ctx->Driver.ReadPixels = fxDDReadPixels565;
ctx->Driver.Bitmap = fxDDDrawBitmap2;
break;
case 32:
ctx->Driver.DrawPixels = fxDDDrawPixels8888;
ctx->Driver.ReadPixels = fxDDReadPixels8888;
ctx->Driver.Bitmap = fxDDDrawBitmap4;
break;
case 15:
ctx->Driver.ReadPixels = fxDDReadPixels555;
ctx->Driver.Bitmap = fxDDDrawBitmap2;
break;
case 16:
ctx->Driver.ReadPixels = fxDDReadPixels565;
ctx->Driver.Bitmap = fxDDDrawBitmap2;
break;
case 32:
ctx->Driver.DrawPixels = fxDDDrawPixels8888;
ctx->Driver.ReadPixels = fxDDReadPixels8888;
ctx->Driver.Bitmap = fxDDDrawBitmap4;
break;
}
ctx->Driver.Finish = fxDDFinish;
ctx->Driver.Flush = NULL;