[Piglit] [PATCH] gl-3.0-render-integer: add a new test for rendering to integer textures
Brian Paul
brianp at vmware.com
Thu Jun 19 07:02:50 PDT 2014
---
tests/all.py | 1 +
tests/spec/gl-3.0/CMakeLists.gl.txt | 1 +
tests/spec/gl-3.0/render-integer.c | 306 +++++++++++++++++++++++++++++++++++
3 files changed, 308 insertions(+)
create mode 100644 tests/spec/gl-3.0/render-integer.c
diff --git a/tests/all.py b/tests/all.py
index 5ad8815..62657b6 100644
--- a/tests/all.py
+++ b/tests/all.py
@@ -938,6 +938,7 @@ add_concurrent_test(gl30, 'genmipmap-errors')
add_concurrent_test(gl30, 'getfragdatalocation')
add_concurrent_test(gl30, 'integer-errors')
gl30['minmax'] = concurrent_test('gl-3.0-minmax')
+gl30['render-integer'] = concurrent_test('gl-3.0-render-integer')
gl30['required-sized-texture-formats'] = concurrent_test('gl-3.0-required-sized-texture-formats 30')
gl30['required-renderbuffer-attachment-formats'] = concurrent_test('gl-3.0-required-renderbuffer-attachment-formats 30')
gl30['required-texture-attachment-formats'] = concurrent_test('gl-3.0-required-texture-attachment-formats 30')
diff --git a/tests/spec/gl-3.0/CMakeLists.gl.txt b/tests/spec/gl-3.0/CMakeLists.gl.txt
index c107fd5..29c59ee 100644
--- a/tests/spec/gl-3.0/CMakeLists.gl.txt
+++ b/tests/spec/gl-3.0/CMakeLists.gl.txt
@@ -10,6 +10,7 @@ link_libraries (
)
piglit_add_executable (gl-3.0-minmax minmax.c)
+piglit_add_executable (gl-3.0-render-integer render-integer.c)
piglit_add_executable (gl-3.0-required-sized-texture-formats required-sized-texture-formats.c)
piglit_add_executable (gl-3.0-required-renderbuffer-attachment-formats required-renderbuffer-attachment-formats.c)
piglit_add_executable (gl-3.0-required-texture-attachment-formats required-texture-attachment-formats.c)
diff --git a/tests/spec/gl-3.0/render-integer.c b/tests/spec/gl-3.0/render-integer.c
new file mode 100644
index 0000000..bbebf3c
--- /dev/null
+++ b/tests/spec/gl-3.0/render-integer.c
@@ -0,0 +1,306 @@
+/*
+ * Copyright 2014 VMware, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+/**
+ * Test OpenGL 3.0 rendering to integer texture formats.
+ * Brian Paul
+ * 19 June 2014
+ */
+
+#include "piglit-util-gl-common.h"
+
+PIGLIT_GL_TEST_CONFIG_BEGIN
+ config.supports_gl_compat_version = 30;
+ config.window_visual = PIGLIT_GL_VISUAL_RGBA | PIGLIT_GL_VISUAL_DOUBLE;
+PIGLIT_GL_TEST_CONFIG_END
+
+
+static const char *vertShaderText =
+ "#version 130 \n"
+ "uniform ivec4 int_in; \n"
+ "flat out ivec4 int_val; \n"
+ " \n"
+ "void main() \n"
+ "{ \n"
+ " gl_Position = gl_Vertex; \n"
+ " int_val = int_in; \n"
+ "} \n";
+
+static const char *fragShaderText =
+ "#version 130 \n"
+ "uniform ivec4 int_bias;\n"
+ "flat in ivec4 int_val;\n"
+ "out ivec4 int_result;\n"
+ "void main()\n"
+ "{ \n"
+ " int_result = int_val + int_bias; \n"
+ "} \n";
+
+
+static const GLint bias[4] = {1, 2, 3, 4};
+
+static GLuint Prog;
+static GLint IntInUniform, IntBiasUniform;
+static GLint TexSize = 200;
+
+
+static void
+sum(int *s, const int *a, const int *b)
+{
+ int i;
+ for (i = 0; i < 4; i++)
+ s[i] = a[i] + b[i];
+}
+
+
+static bool
+probe_int(int x, int y, const int *color, GLenum intFormat)
+{
+ int actual[4], expected[4];
+
+ sum(expected, color, bias);
+
+ switch (intFormat) {
+ case GL_RGBA32I:
+ case GL_RGBA32UI:
+ case GL_RGBA16I:
+ case GL_RGBA16UI:
+ case GL_RGBA8I:
+ case GL_RGBA8UI:
+ break;
+ case GL_RGB32I:
+ case GL_RGB32UI:
+ case GL_RGB16I:
+ case GL_RGB16UI:
+ case GL_RGB8I:
+ case GL_RGB8UI:
+ expected[3] = 1;
+ break;
+ case GL_RG32I:
+ case GL_RG32UI:
+ case GL_RG16I:
+ case GL_RG16UI:
+ case GL_RG8I:
+ case GL_RG8UI:
+ expected[2] = 0;
+ expected[3] = 1;
+ break;
+ case GL_R32I:
+ case GL_R32UI:
+ case GL_R16I:
+ case GL_R16UI:
+ case GL_R8I:
+ case GL_R8UI:
+ expected[1] = 0;
+ expected[2] = 0;
+ expected[3] = 1;
+ break;
+ default:
+ assert(!"Unexpected format in probe_int()");
+ }
+
+ /* need to clamp for 8-bit formats */
+ if (intFormat == GL_RGBA8I ||
+ intFormat == GL_RGB8I ||
+ intFormat == GL_RG8I ||
+ intFormat == GL_R8I) {
+ expected[0] = CLAMP(expected[0], -128, 127);
+ expected[1] = CLAMP(expected[1], -128, 127);
+ expected[2] = CLAMP(expected[2], -128, 127);
+ expected[3] = CLAMP(expected[3], -128, 127);
+ }
+ else if (intFormat == GL_RGBA8UI ||
+ intFormat == GL_RGB8UI ||
+ intFormat == GL_RG8UI ||
+ intFormat == GL_R8UI) {
+ expected[0] = CLAMP(expected[0], 0, 255);
+ expected[1] = CLAMP(expected[1], 0, 255);
+ expected[2] = CLAMP(expected[2], 0, 255);
+ expected[3] = CLAMP(expected[3], 0, 255);
+ }
+
+ glReadPixels(x, y, 1, 1, GL_RGBA_INTEGER, GL_INT, actual);
+
+ if (actual[0] != expected[0] ||
+ actual[1] != expected[1] ||
+ actual[2] != expected[2] ||
+ actual[3] != expected[3]) {
+ printf("Failure at pixel (%d, %d):\n", x, y);
+ printf("Format: %s\n", piglit_get_gl_enum_name(intFormat));
+ printf("Expected: %d, %d, %d, %d\n",
+ expected[0], expected[1], expected[2], expected[3]);
+ printf("Found: %d, %d, %d, %d\n",
+ actual[0], actual[1], actual[2], actual[3]);
+ return false;
+ }
+
+ return true;
+}
+
+
+static bool
+setup_fbo(GLenum intFormat)
+{
+ GLuint tex, fbo;
+ GLenum status;
+
+ glGenTextures(1, &tex);
+ glBindTexture(GL_TEXTURE_2D, tex);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
+ glTexImage2D(GL_TEXTURE_2D, 0, intFormat, TexSize, TexSize, 0,
+ GL_RGBA_INTEGER, GL_UNSIGNED_BYTE, NULL);
+
+ glGenFramebuffers(1, &fbo);
+ glBindFramebuffer(GL_FRAMEBUFFER, fbo);
+
+ glFramebufferTexture2D(GL_FRAMEBUFFER,
+ GL_COLOR_ATTACHMENT0,
+ GL_TEXTURE_2D, tex, 0);
+ if (!piglit_check_gl_error(GL_NO_ERROR)) {
+ fprintf(stderr, "Failed to create integer FBO.\n");
+ piglit_report_result(PIGLIT_FAIL);
+ return false;
+ }
+
+ status = glCheckFramebufferStatus(GL_FRAMEBUFFER);
+ if (status != GL_FRAMEBUFFER_COMPLETE) {
+ printf("Incomplete fbo for format %s (status %s)\n",
+ piglit_get_gl_enum_name(intFormat),
+ piglit_get_gl_enum_name(status));
+ return false;
+ }
+
+ return true;
+}
+
+
+
+static bool
+test_format(GLenum intFormat)
+{
+ static const GLint red[4] = {1000, 0, 0, 0};
+ static const GLint green[4] = {2000, 0, 0, 0};
+ static const GLint blue[4] = {0, 0, 3000, 0};
+ static const GLint alpha[4] = {0, 0, 0, 4000};
+ int x0 = TexSize / 4;
+ int y0 = TexSize / 4;
+ int x1 = TexSize * 3 / 4;
+ int y1 = TexSize * 3 / 4;
+ bool pass = true;
+ enum piglit_result result;
+
+ if (!setup_fbo(intFormat)) {
+ result = PIGLIT_SKIP;
+ goto end;
+ }
+
+ /* Draw different value into each texture quadrant */
+ glUniform4iv(IntInUniform, 1, red);
+ piglit_draw_rect(-1, -1, 1, 1);
+
+ glUniform4iv(IntInUniform, 1, green);
+ piglit_draw_rect(0, -1, 1, 1);
+
+ glUniform4iv(IntInUniform, 1, blue);
+ piglit_draw_rect(-1, 0, 1, 1);
+
+ glUniform4iv(IntInUniform, 1, alpha);
+ piglit_draw_rect(0, 0, 1, 1);
+
+ pass = probe_int(x0, y0, red, intFormat) && pass;
+ pass = probe_int(x1, y0, green, intFormat) && pass;
+ pass = probe_int(x0, y1, blue, intFormat) && pass;
+ pass = probe_int(x1, y1, alpha, intFormat) && pass;
+
+ result = pass ? PIGLIT_PASS : PIGLIT_FAIL;
+
+end:
+ piglit_report_subtest_result(result,
+ "Format %s",
+ piglit_get_gl_enum_name(intFormat));
+ return pass;
+}
+
+
+enum piglit_result
+piglit_display(void)
+{
+ static const GLenum formats[] = {
+ GL_RGBA32I,
+ GL_RGB32I,
+ GL_RG32I,
+ GL_R32I,
+ GL_RGBA16I,
+ GL_RGB16I,
+ GL_RG16I,
+ GL_R16I,
+ GL_RGBA8I,
+ GL_RGB8I,
+ GL_RG8I,
+ GL_R8I,
+
+ GL_RGBA32UI,
+ GL_RGB32UI,
+ GL_RG32UI,
+ GL_R32UI,
+ GL_RGBA16UI,
+ GL_RGB16UI,
+ GL_RG16UI,
+ GL_R16UI,
+ GL_RGBA8UI,
+ GL_RGB8UI,
+ GL_RG8UI,
+ GL_R8UI,
+ };
+ bool pass = true;
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(formats); i++) {
+ pass = test_format(formats[i]) && pass;
+ }
+
+ return pass ? PIGLIT_PASS : PIGLIT_FAIL;
+}
+
+
+void
+piglit_init(int argc, char **argv)
+{
+ piglit_require_gl_version(30);
+
+ Prog = piglit_build_simple_program(vertShaderText, fragShaderText);
+ if (!Prog) {
+ printf("Failed to compile/link program\n");
+ piglit_report_result(PIGLIT_FAIL);
+ }
+
+ glBindFragDataLocation(Prog, 0, "int_result");
+ glLinkProgram(Prog);
+ glUseProgram(Prog);
+
+ IntInUniform = glGetUniformLocation(Prog, "int_in");
+ IntBiasUniform = glGetUniformLocation(Prog, "int_bias");
+
+ glUniform4iv(IntBiasUniform, 1, bias);
+}
--
1.7.10.4
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