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path: root/src/mesa/drivers/dri/i915tex/i830_texstate.c
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Diffstat (limited to 'src/mesa/drivers/dri/i915tex/i830_texstate.c')
-rw-r--r--src/mesa/drivers/dri/i915tex/i830_texstate.c316
1 files changed, 316 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/i915tex/i830_texstate.c b/src/mesa/drivers/dri/i915tex/i830_texstate.c
new file mode 100644
index 00000000000..ba79cf94599
--- /dev/null
+++ b/src/mesa/drivers/dri/i915tex/i830_texstate.c
@@ -0,0 +1,316 @@
+/**************************************************************************
+ *
+ * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * All Rights Reserved.
+ *
+ * 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, sub license, 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 NON-INFRINGEMENT.
+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS 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.
+ *
+ **************************************************************************/
+
+#include "glheader.h"
+#include "macros.h"
+#include "mtypes.h"
+#include "simple_list.h"
+#include "enums.h"
+#include "texformat.h"
+#include "texstore.h"
+
+#include "mm.h"
+
+#include "intel_screen.h"
+#include "intel_ioctl.h"
+#include "intel_tex.h"
+#include "intel_mipmap_tree.h"
+#include "intel_regions.h"
+
+#include "i830_context.h"
+#include "i830_reg.h"
+
+
+
+static GLuint
+translate_texture_format(GLuint mesa_format)
+{
+ switch (mesa_format) {
+ case MESA_FORMAT_L8:
+ return MAPSURF_8BIT | MT_8BIT_L8;
+ case MESA_FORMAT_I8:
+ return MAPSURF_8BIT | MT_8BIT_I8;
+ case MESA_FORMAT_A8:
+ return MAPSURF_8BIT | MT_8BIT_I8; /* Kludge! */
+ case MESA_FORMAT_AL88:
+ return MAPSURF_16BIT | MT_16BIT_AY88;
+ case MESA_FORMAT_RGB565:
+ return MAPSURF_16BIT | MT_16BIT_RGB565;
+ case MESA_FORMAT_ARGB1555:
+ return MAPSURF_16BIT | MT_16BIT_ARGB1555;
+ case MESA_FORMAT_ARGB4444:
+ return MAPSURF_16BIT | MT_16BIT_ARGB4444;
+ case MESA_FORMAT_ARGB8888:
+ return MAPSURF_32BIT | MT_32BIT_ARGB8888;
+ case MESA_FORMAT_YCBCR_REV:
+ return (MAPSURF_422 | MT_422_YCRCB_NORMAL);
+ case MESA_FORMAT_YCBCR:
+ return (MAPSURF_422 | MT_422_YCRCB_SWAPY);
+ case MESA_FORMAT_RGB_FXT1:
+ case MESA_FORMAT_RGBA_FXT1:
+ return (MAPSURF_COMPRESSED | MT_COMPRESS_FXT1);
+ case MESA_FORMAT_RGBA_DXT1:
+ case MESA_FORMAT_RGB_DXT1:
+ return (MAPSURF_COMPRESSED | MT_COMPRESS_DXT1);
+ case MESA_FORMAT_RGBA_DXT3:
+ return (MAPSURF_COMPRESSED | MT_COMPRESS_DXT2_3);
+ case MESA_FORMAT_RGBA_DXT5:
+ return (MAPSURF_COMPRESSED | MT_COMPRESS_DXT4_5);
+ default:
+ fprintf(stderr, "%s: bad image format %x\n", __FUNCTION__, mesa_format);
+ abort();
+ return 0;
+ }
+}
+
+
+
+
+/* The i915 (and related graphics cores) do not support GL_CLAMP. The
+ * Intel drivers for "other operating systems" implement GL_CLAMP as
+ * GL_CLAMP_TO_EDGE, so the same is done here.
+ */
+static GLuint
+translate_wrap_mode(GLenum wrap)
+{
+ switch (wrap) {
+ case GL_REPEAT:
+ return TEXCOORDMODE_WRAP;
+ case GL_CLAMP:
+ case GL_CLAMP_TO_EDGE:
+ return TEXCOORDMODE_CLAMP; /* not really correct */
+ case GL_CLAMP_TO_BORDER:
+ return TEXCOORDMODE_CLAMP_BORDER;
+ case GL_MIRRORED_REPEAT:
+ return TEXCOORDMODE_MIRROR;
+ default:
+ return TEXCOORDMODE_WRAP;
+ }
+}
+
+
+/* Recalculate all state from scratch. Perhaps not the most
+ * efficient, but this has gotten complex enough that we need
+ * something which is understandable and reliable.
+ */
+static GLboolean
+i830_update_tex_unit(struct intel_context *intel, GLuint unit, GLuint ss3)
+{
+ GLcontext *ctx = &intel->ctx;
+ struct i830_context *i830 = i830_context(ctx);
+ struct gl_texture_object *tObj = ctx->Texture.Unit[unit]._Current;
+ struct intel_texture_object *intelObj = intel_texture_object(tObj);
+ struct gl_texture_image *firstImage;
+ GLuint *state = i830->state.Tex[unit];
+
+ memset(state, 0, sizeof(state));
+
+ if (!intel_finalize_mipmap_tree(intel, unit))
+ return GL_FALSE;
+
+ /* Get first image here, since intelObj->firstLevel will get set in
+ * the intel_finalize_mipmap_tree() call above.
+ */
+ firstImage = tObj->Image[0][intelObj->firstLevel];
+
+ i830->state.tex_buffer[unit] = intelObj->mt->region->buffer;
+ i830->state.tex_offset[unit] = intel_miptree_image_offset(intelObj->mt, 0,
+ intelObj->
+ firstLevel);
+
+
+ state[I830_TEXREG_TM0LI] = (_3DSTATE_LOAD_STATE_IMMEDIATE_2 |
+ (LOAD_TEXTURE_MAP0 << unit) | 4);
+
+/* state[I830_TEXREG_TM0S0] = (TM0S0_USE_FENCE | */
+/* t->intel.TextureOffset); */
+
+
+ state[I830_TEXREG_TM0S1] =
+ (((firstImage->Height - 1) << TM0S1_HEIGHT_SHIFT) |
+ ((firstImage->Width - 1) << TM0S1_WIDTH_SHIFT) |
+ translate_texture_format(firstImage->TexFormat->MesaFormat));
+
+ state[I830_TEXREG_TM0S2] =
+ (((((intelObj->mt->pitch * intelObj->mt->cpp) / 4) -
+ 1) << TM0S2_PITCH_SHIFT) | TM0S2_CUBE_FACE_ENA_MASK);
+
+ {
+ if (tObj->Target == GL_TEXTURE_CUBE_MAP)
+ state[I830_TEXREG_CUBE] = (_3DSTATE_MAP_CUBE | MAP_UNIT(unit) |
+ CUBE_NEGX_ENABLE |
+ CUBE_POSX_ENABLE |
+ CUBE_NEGY_ENABLE |
+ CUBE_POSY_ENABLE |
+ CUBE_NEGZ_ENABLE | CUBE_POSZ_ENABLE);
+ else
+ state[I830_TEXREG_CUBE] = (_3DSTATE_MAP_CUBE | MAP_UNIT(unit));
+ }
+
+
+
+
+ {
+ GLuint minFilt, mipFilt, magFilt;
+
+ switch (tObj->MinFilter) {
+ case GL_NEAREST:
+ minFilt = FILTER_NEAREST;
+ mipFilt = MIPFILTER_NONE;
+ break;
+ case GL_LINEAR:
+ minFilt = FILTER_LINEAR;
+ mipFilt = MIPFILTER_NONE;
+ break;
+ case GL_NEAREST_MIPMAP_NEAREST:
+ minFilt = FILTER_NEAREST;
+ mipFilt = MIPFILTER_NEAREST;
+ break;
+ case GL_LINEAR_MIPMAP_NEAREST:
+ minFilt = FILTER_LINEAR;
+ mipFilt = MIPFILTER_NEAREST;
+ break;
+ case GL_NEAREST_MIPMAP_LINEAR:
+ minFilt = FILTER_NEAREST;
+ mipFilt = MIPFILTER_LINEAR;
+ break;
+ case GL_LINEAR_MIPMAP_LINEAR:
+ minFilt = FILTER_LINEAR;
+ mipFilt = MIPFILTER_LINEAR;
+ break;
+ default:
+ return GL_FALSE;
+ }
+
+ if (tObj->MaxAnisotropy > 1.0) {
+ minFilt = FILTER_ANISOTROPIC;
+ magFilt = FILTER_ANISOTROPIC;
+ }
+ else {
+ switch (tObj->MagFilter) {
+ case GL_NEAREST:
+ magFilt = FILTER_NEAREST;
+ break;
+ case GL_LINEAR:
+ magFilt = FILTER_LINEAR;
+ break;
+ default:
+ return GL_FALSE;
+ }
+ }
+
+ state[I830_TEXREG_TM0S3] = i830->lodbias_tm0s3[unit];
+
+#if 0
+ /* YUV conversion:
+ */
+ if (firstImage->TexFormat->MesaFormat == MESA_FORMAT_YCBCR ||
+ firstImage->TexFormat->MesaFormat == MESA_FORMAT_YCBCR_REV)
+ state[I830_TEXREG_TM0S3] |= SS2_COLORSPACE_CONVERSION;
+#endif
+
+ state[I830_TEXREG_TM0S3] |= ((intelObj->lastLevel -
+ intelObj->firstLevel) *
+ 4) << TM0S3_MIN_MIP_SHIFT;
+
+ state[I830_TEXREG_TM0S3] |= ((minFilt << TM0S3_MIN_FILTER_SHIFT) |
+ (mipFilt << TM0S3_MIP_FILTER_SHIFT) |
+ (magFilt << TM0S3_MAG_FILTER_SHIFT));
+ }
+
+ {
+ GLenum ws = tObj->WrapS;
+ GLenum wt = tObj->WrapT;
+
+
+ /* 3D textures not available on i830
+ */
+ if (tObj->Target == GL_TEXTURE_3D)
+ return GL_FALSE;
+
+ state[I830_TEXREG_MCS] = (_3DSTATE_MAP_COORD_SET_CMD |
+ MAP_UNIT(unit) |
+ ENABLE_TEXCOORD_PARAMS |
+ ss3 |
+ ENABLE_ADDR_V_CNTL |
+ TEXCOORD_ADDR_V_MODE(translate_wrap_mode(wt))
+ | ENABLE_ADDR_U_CNTL |
+ TEXCOORD_ADDR_U_MODE(translate_wrap_mode
+ (ws)));
+ }
+
+
+ state[I830_TEXREG_TM0S4] = INTEL_PACKCOLOR8888(tObj->_BorderChan[0],
+ tObj->_BorderChan[1],
+ tObj->_BorderChan[2],
+ tObj->_BorderChan[3]);
+
+
+ I830_ACTIVESTATE(i830, I830_UPLOAD_TEX(unit), GL_TRUE);
+ /* memcmp was already disabled, but definitely won't work as the
+ * region might now change and that wouldn't be detected:
+ */
+ I830_STATECHANGE(i830, I830_UPLOAD_TEX(unit));
+ return GL_TRUE;
+}
+
+
+
+
+void
+i830UpdateTextureState(struct intel_context *intel)
+{
+ struct i830_context *i830 = i830_context(&intel->ctx);
+ GLboolean ok = GL_TRUE;
+ GLuint i;
+
+ for (i = 0; i < I830_TEX_UNITS && ok; i++) {
+ switch (intel->ctx.Texture.Unit[i]._ReallyEnabled) {
+ case TEXTURE_1D_BIT:
+ case TEXTURE_2D_BIT:
+ case TEXTURE_CUBE_BIT:
+ ok = i830_update_tex_unit(intel, i, TEXCOORDS_ARE_NORMAL);
+ break;
+ case TEXTURE_RECT_BIT:
+ ok = i830_update_tex_unit(intel, i, TEXCOORDS_ARE_IN_TEXELUNITS);
+ break;
+ case 0:
+ if (i830->state.active & I830_UPLOAD_TEX(i))
+ I830_ACTIVESTATE(i830, I830_UPLOAD_TEX(i), GL_FALSE);
+ break;
+ case TEXTURE_3D_BIT:
+ default:
+ ok = GL_FALSE;
+ break;
+ }
+ }
+
+ FALLBACK(intel, I830_FALLBACK_TEXTURE, !ok);
+
+ if (ok)
+ i830EmitTextureBlend(i830);
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-05-16 05:57:52 +0000