diff options
author | Patrice Mandin <patmandin@gmail.com> | 2009-08-01 11:15:18 +0200 |
---|---|---|
committer | Patrice Mandin <patmandin@gmail.com> | 2009-08-01 11:15:18 +0200 |
commit | fc3d564daeacdbd76b97de2ffc10e15931a18c7a (patch) | |
tree | f630d426ba8169f3fb4cb0b8f15c370df46afb36 /src | |
parent | c1785c19ca0716a7e85777242949a0c33e28988f (diff) |
mesa st: Use POT texture for draw pixels operations if NPOT texture is not supported
Diffstat (limited to 'src')
-rw-r--r-- | src/mesa/state_tracker/st_cb_drawpixels.c | 68 |
1 files changed, 58 insertions, 10 deletions
diff --git a/src/mesa/state_tracker/st_cb_drawpixels.c b/src/mesa/state_tracker/st_cb_drawpixels.c index 8b5094a04f..b39403129d 100644 --- a/src/mesa/state_tracker/st_cb_drawpixels.c +++ b/src/mesa/state_tracker/st_cb_drawpixels.c @@ -60,6 +60,7 @@ #include "pipe/p_inlines.h" #include "util/u_tile.h" #include "util/u_draw_quad.h" +#include "util/u_math.h" #include "shader/prog_instruction.h" #include "cso_cache/cso_context.h" @@ -341,6 +342,7 @@ make_texture(struct st_context *st, enum pipe_format pipeFormat; GLuint cpp; GLenum baseFormat; + int ptw, pth; baseFormat = _mesa_base_format(format); @@ -355,7 +357,28 @@ make_texture(struct st_context *st, if (!pixels) return NULL; - pt = st_texture_create(st, PIPE_TEXTURE_2D, pipeFormat, 0, width, height, 1, + /* 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); if (!pt) { _mesa_unmap_drawpix_pbo(ctx, unpack); @@ -420,7 +443,7 @@ make_texture(struct st_context *st, static void draw_quad(GLcontext *ctx, GLfloat x0, GLfloat y0, GLfloat z, GLfloat x1, GLfloat y1, const GLfloat *color, - GLboolean invertTex) + GLboolean invertTex, GLfloat maxXcoord, GLfloat maxYcoord) { struct st_context *st = ctx->st; struct pipe_context *pipe = ctx->st->pipe; @@ -435,8 +458,9 @@ draw_quad(GLcontext *ctx, GLfloat x0, GLfloat y0, GLfloat z, const GLfloat clip_y0 = y0 / fb_height * 2.0f - 1.0f; const GLfloat clip_x1 = x1 / fb_width * 2.0f - 1.0f; const GLfloat clip_y1 = y1 / fb_height * 2.0f - 1.0f; - const GLfloat sLeft = 0.0f, sRight = 1.0f; - const GLfloat tTop = invertTex, tBot = 1.0f - tTop; + const GLfloat sLeft = 0.0f, sRight = maxXcoord; + const GLfloat tTop = invertTex ? maxYcoord : 0.0f; + const GLfloat tBot = invertTex ? 0.0f : maxYcoord; GLuint tex, i; /* upper-left */ @@ -608,7 +632,9 @@ draw_textured_quad(GLcontext *ctx, GLint x, GLint y, GLfloat z, y0 = (GLfloat) y; y1 = y + height * ctx->Pixel.ZoomY; - draw_quad(ctx, x0, y0, z, x1, y1, color, invertTex); + draw_quad(ctx, x0, y0, z, x1, y1, color, invertTex, + (GLfloat) width / pt->width[0], + (GLfloat) height / pt->height[0]); /* restore state */ cso_restore_rasterizer(cso); @@ -648,7 +674,7 @@ draw_stencil_pixels(GLcontext *ctx, GLint x, GLint y, usage = PIPE_TRANSFER_READ_WRITE; else usage = PIPE_TRANSFER_WRITE; - + pt = st_cond_flush_get_tex_transfer(st_context(ctx), strb->texture, 0, 0, 0, usage, x, y, width, height); @@ -841,7 +867,7 @@ copy_stencil_pixels(GLcontext *ctx, GLint srcx, GLint srcy, usage = PIPE_TRANSFER_READ_WRITE; else usage = PIPE_TRANSFER_WRITE; - + ptDraw = st_cond_flush_get_tex_transfer(st_context(ctx), rbDraw->texture, 0, 0, 0, usage, dstx, dsty, @@ -849,7 +875,7 @@ copy_stencil_pixels(GLcontext *ctx, GLint srcx, GLint srcy, assert(ptDraw->block.width == 1); assert(ptDraw->block.height == 1); - + /* map the stencil buffer */ drawMap = screen->transfer_map(screen, ptDraw); @@ -923,6 +949,7 @@ st_CopyPixels(GLcontext *ctx, GLint srcx, GLint srcy, struct pipe_texture *pt; GLfloat *color; enum pipe_format srcFormat, texFormat; + int ptw, pth; pipe->flush(pipe, PIPE_FLUSH_RENDER_CACHE, NULL); @@ -1004,13 +1031,34 @@ st_CopyPixels(GLcontext *ctx, GLint srcx, GLint srcy, height -= -srcy; srcy = 0; } - + if (height < 0) return; } + /* 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(ctx->st, PIPE_TEXTURE_2D, texFormat, 0, - width, height, 1, + ptw, pth, 1, PIPE_TEXTURE_USAGE_SAMPLER); if (!pt) return; |