tex-skipped-unit: New test for first texture unit being non-zero.

Lots of old hardware had issues with this, and I thought I noticed
a problem with this in the fixed function fragment program generation.

1 files changed, 135 insertions, 0 deletions

diff --git a/tests/texturing/tex-skipped-unit.c b/tests/texturing/tex-skipped-unit.c
new file mode 100644
index 000000000..1b905f825
--- /dev/null
+++ b/tests/texturing/tex-skipped-unit.c
@@ -0,0 +1,135 @@
+/*
+ * Copyright © 2010 Intel Corporation
+ *
+ * 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.
+ */
+
+/** @file bump.c
+ *
+ * Test of ATI_envmap_bumpmap texture combiners.
+ */
+
+#include "piglit-framework.h"
+#include "piglit-util.h"
+
+#define TEXSIZE 32
+
+int piglit_width = TEXSIZE * 2;
+int piglit_height = TEXSIZE * 2;
+int piglit_window_mode = GLUT_RGB | GLUT_ALPHA | GLUT_DOUBLE;
+
+GLvoid
+draw_rect_tex(float x, float y, float w, float h,
+	      float tx, float ty, float tw, float th)
+{
+	float verts[4][4];
+	float tex[4][2];
+
+	verts[0][0] = x;
+	verts[0][1] = y;
+	verts[0][2] = 0.0;
+	verts[0][3] = 1.0;
+	tex[0][0] = tx;
+	tex[0][1] = ty;
+	verts[1][0] = x + w;
+	verts[1][1] = y;
+	verts[1][2] = 0.0;
+	verts[1][3] = 1.0;
+	tex[1][0] = tx + tw;
+	tex[1][1] = ty;
+	verts[2][0] = x + w;
+	verts[2][1] = y + h;
+	verts[2][2] = 0.0;
+	verts[2][3] = 1.0;
+	tex[2][0] = tx + tw;
+	tex[2][1] = ty + th;
+	verts[3][0] = x;
+	verts[3][1] = y + h;
+	verts[3][2] = 0.0;
+	verts[3][3] = 1.0;
+	tex[3][0] = tx;
+	tex[3][1] = ty + th;
+
+	glVertexPointer(4, GL_FLOAT, 0, verts);
+	glEnableClientState(GL_VERTEX_ARRAY);
+
+	glClientActiveTexture(GL_TEXTURE1);
+	glTexCoordPointer(2, GL_FLOAT, 0, tex);
+	glEnableClientState(GL_TEXTURE_COORD_ARRAY);
+
+	glDrawArrays(GL_QUADS, 0, 4);
+
+	glDisableClientState(GL_VERTEX_ARRAY);
+
+	glDisableClientState(GL_TEXTURE_COORD_ARRAY);
+}
+
+enum piglit_result
+piglit_display(void)
+{
+	GLboolean pass = GL_TRUE;
+	GLuint tex;
+	float red[4]   = {1.0, 0.0, 0.0, 1.0};
+	float green[4] = {0.0, 1.0, 0.0, 1.0};
+	float blue[4]  = {0.0, 0.0, 1.0, 1.0};
+	float white[4] = {1.0, 1.0, 1.0, 1.0};
+
+	tex = piglit_rgbw_texture(GL_RGBA, TEXSIZE, TEXSIZE,
+				  GL_FALSE, GL_FALSE);
+	glActiveTexture(GL_TEXTURE1);
+	glEnable(GL_TEXTURE_2D);
+	glBindTexture(GL_TEXTURE_2D, tex);
+
+	draw_rect_tex(-1, -1, 2, 2,
+		      0, 0, 1, 1);
+
+	pass = pass && piglit_probe_rect_rgba(0,
+					      0,
+					      piglit_width / 2,
+					      piglit_height / 2,
+					      red);
+	pass = pass && piglit_probe_rect_rgba(piglit_width / 2,
+					      0,
+					      piglit_width / 2,
+					      piglit_height / 2,
+					      green);
+	pass = pass && piglit_probe_rect_rgba(0,
+					      piglit_height / 2,
+					      piglit_width / 2,
+					      piglit_height / 2,
+					      blue);
+	pass = pass && piglit_probe_rect_rgba(piglit_width / 2,
+					      piglit_height / 2,
+					      piglit_width / 2,
+					      piglit_height / 2,
+					      white);
+
+	glutSwapBuffers();
+
+	return pass ? PIGLIT_SUCCESS : PIGLIT_FAILURE;
+}
+
+void
+piglit_init(int argc, char **argv)
+{
+	if (!GLEW_VERSION_1_2) {
+		piglit_report_result(PIGLIT_SKIP);
+	}
+}