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authormarha <marha@users.sourceforge.net>2012-08-16 14:48:54 +0200
committermarha <marha@users.sourceforge.net>2012-08-16 14:48:54 +0200
commit4aac32998c2b173b84aec0b020aa086fef4b1423 (patch)
tree3ffcb971bcc2f01929f60f8f704996544b69b2e1 /mesalib/src/gallium/auxiliary/util/u_simple_shaders.c
parent9ddf44af81782451cee798e06749ce3067a14a41 (diff)
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libxcb xserver mesa git update 16 Aug 2012
Diffstat (limited to 'mesalib/src/gallium/auxiliary/util/u_simple_shaders.c')
-rw-r--r--mesalib/src/gallium/auxiliary/util/u_simple_shaders.c133
1 files changed, 133 insertions, 0 deletions
diff --git a/mesalib/src/gallium/auxiliary/util/u_simple_shaders.c b/mesalib/src/gallium/auxiliary/util/u_simple_shaders.c
index 3476b6ce0..5f0134d70 100644
--- a/mesalib/src/gallium/auxiliary/util/u_simple_shaders.c
+++ b/mesalib/src/gallium/auxiliary/util/u_simple_shaders.c
@@ -40,7 +40,12 @@
#include "pipe/p_state.h"
#include "util/u_simple_shaders.h"
#include "util/u_debug.h"
+#include "util/u_memory.h"
+#include "tgsi/tgsi_dump.h"
+#include "tgsi/tgsi_strings.h"
#include "tgsi/tgsi_ureg.h"
+#include "tgsi/tgsi_text.h"
+#include <stdio.h> /* include last */
@@ -353,3 +358,131 @@ util_make_fragment_cloneinput_shader(struct pipe_context *pipe, int num_cbufs,
return ureg_create_shader_and_destroy( ureg, pipe );
}
+
+
+static void *
+util_make_fs_blit_msaa_gen(struct pipe_context *pipe,
+ unsigned tgsi_tex,
+ const char *output_semantic,
+ const char *output_mask)
+{
+ static const char shader_templ[] =
+ "FRAG\n"
+ "DCL IN[0], GENERIC[0], LINEAR\n"
+ "DCL SAMP[0]\n"
+ "DCL OUT[0], %s\n"
+ "DCL TEMP[0]\n"
+
+ "F2U TEMP[0], IN[0]\n"
+ "TXF OUT[0]%s, TEMP[0].xyzz, SAMP[0], %s\n"
+ "END\n";
+
+ const char *type = tgsi_texture_names[tgsi_tex];
+ char text[sizeof(shader_templ)+100];
+ struct tgsi_token tokens[1000];
+ struct pipe_shader_state state = {tokens};
+
+ assert(tgsi_tex == TGSI_TEXTURE_2D_MSAA ||
+ tgsi_tex == TGSI_TEXTURE_2D_ARRAY_MSAA);
+
+ sprintf(text, shader_templ, output_semantic, output_mask, type);
+
+ if (!tgsi_text_translate(text, tokens, Elements(tokens))) {
+ puts(text);
+ assert(0);
+ return NULL;
+ }
+#if 0
+ tgsi_dump(state.tokens, 0);
+#endif
+
+ return pipe->create_fs_state(pipe, &state);
+}
+
+
+/**
+ * Make a fragment shader that sets the output color to a color
+ * fetched from a multisample texture.
+ * \param tex_target one of PIPE_TEXTURE_x
+ */
+void *
+util_make_fs_blit_msaa_color(struct pipe_context *pipe,
+ unsigned tgsi_tex)
+{
+ return util_make_fs_blit_msaa_gen(pipe, tgsi_tex,
+ "COLOR[0]", "");
+}
+
+
+/**
+ * Make a fragment shader that sets the output depth to a depth value
+ * fetched from a multisample texture.
+ * \param tex_target one of PIPE_TEXTURE_x
+ */
+void *
+util_make_fs_blit_msaa_depth(struct pipe_context *pipe,
+ unsigned tgsi_tex)
+{
+ return util_make_fs_blit_msaa_gen(pipe, tgsi_tex,
+ "POSITION", ".z");
+}
+
+
+/**
+ * Make a fragment shader that sets the output stencil to a stencil value
+ * fetched from a multisample texture.
+ * \param tex_target one of PIPE_TEXTURE_x
+ */
+void *
+util_make_fs_blit_msaa_stencil(struct pipe_context *pipe,
+ unsigned tgsi_tex)
+{
+ return util_make_fs_blit_msaa_gen(pipe, tgsi_tex,
+ "STENCIL", ".y");
+}
+
+
+/**
+ * Make a fragment shader that sets the output depth and stencil to depth
+ * and stencil values fetched from two multisample textures / samplers.
+ * The sizes of both textures should match (it should be one depth-stencil
+ * texture).
+ * \param tex_target one of PIPE_TEXTURE_x
+ */
+void *
+util_make_fs_blit_msaa_depthstencil(struct pipe_context *pipe,
+ unsigned tgsi_tex)
+{
+ static const char shader_templ[] =
+ "FRAG\n"
+ "DCL IN[0], GENERIC[0], LINEAR\n"
+ "DCL SAMP[0..1]\n"
+ "DCL OUT[0], POSITION\n"
+ "DCL OUT[1], STENCIL\n"
+ "DCL TEMP[0]\n"
+
+ "F2U TEMP[0], IN[0]\n"
+ "TXF OUT[0].z, TEMP[0], SAMP[0], %s\n"
+ "TXF OUT[1].y, TEMP[0], SAMP[1], %s\n"
+ "END\n";
+
+ const char *type = tgsi_texture_names[tgsi_tex];
+ char text[sizeof(shader_templ)+100];
+ struct tgsi_token tokens[1000];
+ struct pipe_shader_state state = {tokens};
+
+ assert(tgsi_tex == TGSI_TEXTURE_2D_MSAA ||
+ tgsi_tex == TGSI_TEXTURE_2D_ARRAY_MSAA);
+
+ sprintf(text, shader_templ, type, type);
+
+ if (!tgsi_text_translate(text, tokens, Elements(tokens))) {
+ assert(0);
+ return NULL;
+ }
+#if 0
+ tgsi_dump(state.tokens, 0);
+#endif
+
+ return pipe->create_fs_state(pipe, &state);
+}