/**
+ * Create a temporary texture to hold an image of the given size.
+ * If width, height are not POT and the driver only handles POT textures,
+ * allocate the next larger size of texture that is POT.
+ */
+static struct pipe_texture *
+alloc_texture(struct st_context *st, GLsizei width, GLsizei height,
+ enum pipe_format texFormat)
+{
+ struct pipe_context *pipe = st->pipe;
+ struct pipe_screen *screen = pipe->screen;
+ struct pipe_texture *pt;
+ int ptw, pth;
+
+ ptw = width;
+ pth = height;
+
+ /* Need to use POT texture? */
+ if (!screen->get_param(screen, PIPE_CAP_NPOT_TEXTURES)) {
+ int l2pt, maxSize;
+
+ l2pt = util_logbase2(width);
+ if (1 << l2pt != width) {
+ ptw = 1 << (l2pt + 1);
+ }
+
+ l2pt = util_logbase2(height);
+ if (1 << l2pt != height) {
+ pth = 1 << (l2pt + 1);
+ }
+
+ /* Check against maximum texture size */
+ maxSize = 1 << (pipe->screen->get_param(pipe->screen,
+ PIPE_CAP_MAX_TEXTURE_2D_LEVELS) - 1);
+ assert(ptw <= maxSize);
+ assert(pth <= maxSize);
+ }
+
+ pt = st_texture_create(st, PIPE_TEXTURE_2D, texFormat, 0,
+ ptw, pth, 1, PIPE_TEXTURE_USAGE_SAMPLER);
+
+ return pt;
+}
+
+
+/**
* Make texture containing an image for glDrawPixels image.
* If 'pixels' is NULL, leave the texture image data undefined.
*/
enum pipe_format pipeFormat;
GLuint cpp;
GLenum baseFormat;
- int ptw, pth;
baseFormat = base_format(format);
if (!pixels)
return NULL;
- /* Need to use POT texture? */
- ptw = width;
- pth = height;
- if (!screen->get_param(screen, PIPE_CAP_NPOT_TEXTURES)) {
- int l2pt, maxSize;
-
- l2pt = util_logbase2(width);
- if (1<<l2pt != width) {
- ptw = 1<<(l2pt+1);
- }
- l2pt = util_logbase2(height);
- if (1<<l2pt != height) {
- pth = 1<<(l2pt+1);
- }
-
- /* Check against maximum texture size */
- maxSize = 1 << (pipe->screen->get_param(pipe->screen, PIPE_CAP_MAX_TEXTURE_2D_LEVELS) - 1);
- assert(ptw <= maxSize);
- assert(pth <= maxSize);
- }
-
- pt = st_texture_create(st, PIPE_TEXTURE_2D, pipeFormat, 0, ptw, pth, 1,
- PIPE_TEXTURE_USAGE_SAMPLER);
+ /* alloc temporary texture */
+ pt = alloc_texture(st, width, height, pipeFormat);
if (!pt) {
_mesa_unmap_pbo_source(ctx, unpack);
return NULL;
struct pipe_texture *pt;
GLfloat *color;
enum pipe_format srcFormat, texFormat;
- int ptw, pth;
GLboolean invertTex = GL_FALSE;
pipe->flush(pipe, PIPE_FLUSH_RENDER_CACHE, NULL);
invertTex = !invertTex;
}
- /* Need to use POT texture? */
- ptw = width;
- pth = height;
- if (!screen->get_param(screen, PIPE_CAP_NPOT_TEXTURES)) {
- int l2pt, maxSize;
-
- l2pt = util_logbase2(width);
- if (1<<l2pt != width) {
- ptw = 1<<(l2pt+1);
- }
- l2pt = util_logbase2(height);
- if (1<<l2pt != height) {
- pth = 1<<(l2pt+1);
- }
-
- /* Check against maximum texture size */
- maxSize = 1 << (pipe->screen->get_param(pipe->screen, PIPE_CAP_MAX_TEXTURE_2D_LEVELS) - 1);
- assert(ptw <= maxSize);
- assert(pth <= maxSize);
- }
-
- pt = st_texture_create(st, PIPE_TEXTURE_2D, texFormat, 0,
- ptw, pth, 1,
- PIPE_TEXTURE_USAGE_SAMPLER);
+ /* alloc temporary texture */
+ pt = alloc_texture(st, width, height, texFormat);
if (!pt)
return;