/**
* Copy user-provide bitmap bits into texture buffer, expanding
* bits into texels.
- * "On" bits will set texels to 0xff.
+ * "On" bits will set texels to 0x0.
* "Off" bits will not modify texels.
* Note that the image is actually going to be upside down in
* the texture. We deal with that with texcoords.
const GLubyte *bitmap,
ubyte *destBuffer, uint destStride)
{
- GLint row, col;
-
-#define SET_PIXEL(COL, ROW) \
- destBuffer[(py + (ROW)) * destStride + px + (COL)] = 0x0;
-
- for (row = 0; row < height; row++) {
- const GLubyte *src = (const GLubyte *) _mesa_image_address2d(unpack,
- bitmap, width, height, GL_COLOR_INDEX, GL_BITMAP, row, 0);
-
- if (unpack->LsbFirst) {
- /* Lsb first */
- GLubyte mask = 1U << (unpack->SkipPixels & 0x7);
- for (col = 0; col < width; col++) {
-
- if (*src & mask) {
- SET_PIXEL(col, row);
- }
-
- if (mask == 128U) {
- src++;
- mask = 1U;
- }
- else {
- mask = mask << 1;
- }
- }
+ destBuffer += py * destStride + px;
- /* get ready for next row */
- if (mask != 1)
- src++;
- }
- else {
- /* Msb first */
- GLubyte mask = 128U >> (unpack->SkipPixels & 0x7);
- for (col = 0; col < width; col++) {
-
- if (*src & mask) {
- SET_PIXEL(col, row);
- }
-
- if (mask == 1U) {
- src++;
- mask = 128U;
- }
- else {
- mask = mask >> 1;
- }
- }
-
- /* get ready for next row */
- if (mask != 128)
- src++;
- }
-
- } /* row */
-
-#undef SET_PIXEL
+ _mesa_expand_bitmap(width, height, unpack, bitmap,
+ destBuffer, destStride, 0x0);
}
struct pipe_texture *pt;
/* PBO source... */
- bitmap = _mesa_map_bitmap_pbo(ctx, unpack, bitmap);
+ bitmap = _mesa_map_pbo_source(ctx, unpack, bitmap);
if (!bitmap) {
return NULL;
}
0, width, height, 1,
PIPE_TEXTURE_USAGE_SAMPLER);
if (!pt) {
- _mesa_unmap_bitmap_pbo(ctx, unpack);
+ _mesa_unmap_pbo_source(ctx, unpack);
return NULL;
}
unpack_bitmap(ctx->st, 0, 0, width, height, unpack, bitmap,
dest, transfer->stride);
- _mesa_unmap_bitmap_pbo(ctx, unpack);
+ _mesa_unmap_pbo_source(ctx, unpack);
/* Release transfer */
screen->transfer_unmap(screen, transfer);
const GLfloat clip_y0 = (GLfloat)(y0 / fb_height * 2.0 - 1.0);
const GLfloat clip_x1 = (GLfloat)(x1 / fb_width * 2.0 - 1.0);
const GLfloat clip_y1 = (GLfloat)(y1 / fb_height * 2.0 - 1.0);
- const GLuint max_slots = 4096 / sizeof(st->bitmap.vertices);
+
+ /* XXX: Need to improve buffer_write to allow NO_WAIT (as well as
+ * no_flush) updates to buffers where we know there is no conflict
+ * with previous data. Currently using max_slots > 1 will cause
+ * synchronous rendering if the driver flushes its command buffers
+ * between one bitmap and the next. Our flush hook below isn't
+ * sufficient to catch this as the driver doesn't tell us when it
+ * flushes its own command buffers. Until this gets fixed, pay the
+ * price of allocating a new buffer for each bitmap cache-flush to
+ * avoid synchronous rendering.
+ */
+ const GLuint max_slots = 1; /* 4096 / sizeof(st->bitmap.vertices); */
GLuint i;
if (st->bitmap.vbuf_slot >= max_slots) {
struct pipe_screen *screen = pipe->screen;
struct bitmap_cache *cache = st->bitmap.cache;
- //memset(cache->buffer, 0xff, sizeof(cache->buffer));
+ /*memset(cache->buffer, 0xff, sizeof(cache->buffer));*/
cache->empty = GL_TRUE;
cache->xmin = 1000000;